| __Name__ | __Size__ | __Date__ | __Rating__ | __Description__ |

| **(Parent Dir)** | *folder* | | **Up to TI-89 BASIC Files** |

| **2dcollisions.zip** | 187k | 11-04-15 | | **Two-Dimensional Collisions** This program solves two-dimensional collision problems involving 2 smooth, non-rotating objects. Elastic, inelastic, and completely inelastic collisions are treated. The required input varies depending on collision type, but may include masses, initial or final velocities, r (coefficient of restitution), KE (final kinetic energy), ΔKE (change in kinetic energy), or β (percent change in kinetic energy). Depending on input, results may include initial or final velocities or masses. Momentum and energy equations can be displayed as computed, if desired. Changes in the masses of the objects are permitted so that some two body nuclear reactions can be handled. Several examples are included. |

| **abc.zip** | 1k | 00-10-30 | | **ABC v1.0** This program solves the equation abc=denergy |

| **absphys.zip** | 2k | 00-09-28 | | **Absolute Physics** This is the most versatile physics program I've seen for the 89. With this program, you select the best equation for your problem and specify the variable to solve for. You're able to solve equations is seconds. The accuracy of the program is amazing! Because this program is easy to use, it helps a lot with home work, tests, etc. |

| **abtable.zip** | 2k | 01-06-12 | | **Acid/Base Table** a table of different acids/bases, and the Ka and Kb for each one. |

| **acceler8.zip** | 6k | 05-04-20 | | **Uniformly Accelerated Linear Motion** This program solves uniformly accelerated linear motion problems. This is a consderably revised version of linmot(). The values of any 5 of the 7 quantities { xo, x, vo, v, a, to, t } must be entered, then the program solves for the remaining 2 quantities. Only solutions with td to are given. Entered values and results are saved (temporarily) and can be edited for use in the next calculation by cutting and pasting in the dialog box. All solutions are copied to the home screen. |

| **accelera.zip** | 8k | 03-08-26 | | **Physics Solver v1.2--Acceleration** A physics program which will allow you to solve for any variable from 5 different equations relating to acceleration. |

| **acidbase.zip** | 4k | 01-02-21 | | **Weak Acid/Base Solver** a very useful tool for acid/base equilibrium problems |

| **acid.zip** | 1k | 01-02-15 | | **Common Acid Database v2.01** This is a database of common acids. You can search by name or formula. Version 2.01 has more acids and some bugs fixed (see readme) |

| **agua_saturada.zip** | 227k | 08-04-14 | | **Saturated Steam / Agua Saturada v1.0** ENGLISH: This program calculates saturated steam - water - thermodynamic properties ( liquid - vapor mixture ) at a given temperature or presure and quality or another specific property - optional - ( volume - density -, internal energy, enthalpy or entropy ) using tables and linear interpolation. TI-89, TI-92, TI-92 Plus, Voyage 200 and TI-89 Titanium compatible. ESPAÑOL: Este programa calcula las propiedades termodinámicas del agua saturada ( mezcla líquido - vapor ) a una temperatura o presión y calidad u otra propiedad específica - opcional - dada ( volumen - densidad -, energía interna, entalpía o entropía ) usando tablas e interpolación lineal. Compatible con TI-89, TI-92, TI-92 Plus, Voyage 200 y TI-89 Titanium. |

| **allelefrequencycalculator.zip** | 14k | 08-03-25 | | **Allele Frequency Calculator** This program will determine the frequency of the dominant and recessive alleles of an organism's trait in a certain environment based on Charles Darwin's theory of Natural Selection. Made especially for Biology class, this is a very small, fast, and easy way to find how many dominant (ex. RR) alleles compared to recessive (rr) alleles in organisms there are in a population. |

| **amino.zip** | 1k | 11-04-19 | | **Amino Acids** Enter an mRNA codon and find its corresponding amino acid. |

| **analogfilters.zip** | 56k | 01-12-16 | | **Butterworth and Chevishev Filter Generators** Takes cut-off frequency, degree, bandwidth and type of filter and generates a Butterworth or Chevishev filter with inductors and capacitors. |

| **antennacreator.zip** | 1k | 09-07-15 | | **Antenna Creator** This simple program will calculate single element antenna lengths based on two frequencies that the user inputs. It can create 1/4, 3/8, 1/2, 5/8, and full wave lengths. |

| **antoine.zip** | 13k | 04-12-17 | | **Antoine** Solves Antoine ecuation for various substances. (english and español) |

| **apphysics.zip** | 5k | 03-05-18 | | **AP Physics** This program displays every single equation I have been taught in the 2002-2003 school year by my AP Physics teacher. The equations are categorized by a menu so you don't have to scroll through every equation for the one you want. |

| **arctan2.zip** | 1k | 06-06-15 | | **Arctan2** Arctan2 finds the angle associated with the x and y coordinates which the user is prompted for. The program does work for radians and degrees. |

| **arma2d_eng.zip** | 276k | 02-11-13 | | **Arma2d v3.0** Civil engineering program for the analysis of determinant and indeterminant Plane Trusses. Calculates displacements, reactions, axial forces and members stresses using matrix methods. Also, you can plot the geometry, displcements and the animation of the structure |

| **arma2d_esp89.zip** | 27k | 02-03-19 | | **arma2d_esp** Este programa calcula los desplazamientos, reacciones y fuerzas axiales de una armadura o cercha determinada o indeterminada |

| **arma2d.zip** | 334k | 02-08-28 | | **Arma2d v3.0** Programa de Ingenieria civil para el analisis estructural de armaduras planas. Permite combinaciones de carga como cargas puntuales, desplazamientos forzados, cambios de temperatura y longitudes incorrectas. Calcula desplazamientos, reacciones y fuerzas y esfuerzos axiales de los elementos. Esta nueva version ademas grafica los desplazamientos al igual que los anima. |

| **arrheniusequation.zip** | 1k | 09-11-05 | | **Arrhenius Equation** use Arrhenius equation to calculate the activation energy of a reaction, given 2 different rate constants at two temperatures measured in Kelvin- enter with the parameters arrheniu(k1,t1,k2,t2) |

| **asser.zip** | 2k | 02-03-02 | | **Asser v1.00** [French] Programme déstiné aux étudiants en classe préparatoire aux grandes écoles d'ingénieurs. Fonctions: Critère de Routh et Calcul de l'erreur d'un système asservi. |

| **atom89.zip** | 1k | 00-06-08 | | **Atom** A program that displays the relevant properties for chemistry of electrons, neutrons, and protons. |

| **atomicnumberelement.zip** | 1k | 11-04-26 | | **Atomic Number <--> Element Name** Enter the atomic number and find the name of the element or enter the element and find its atomic number. |

| **atomicon.zip** | 1k | 00-12-10 | | **Atomicon89** Atomic conversions-moletomass, massto atoms, etc... |

| **atomictheory.zip** | 1k | 00-06-12 | | **Atomic Theory** This is a program that tells the characteristics of the following atomic theories: Aristotelian, premodern (around the 1700s), Dalton's, and modern. |

| **atom.zip** | 9k | 03-08-26 | | **Physics Solver v1.2--The Atom** A physics program which will allow you to solve for any variable from 4 different equations relating to atoms. |

| **autocatastroti.zip** | 2197k | 11-08-19 | | **AutoCatastro TI-2.0** Programa para cálculo topográfico en calculadoras Texas TI-89 Titanium y Voyage™ 200, entre sus opciones presenta: administrador de proyectos, cálculo de levantamientos de campo, compensaciones de levantamientos por el método de mínimos cuadrados, entrada de coordenadas, cálculo de intersecciones, exportación e importación de puntos en formato texto, cálculo de áreas y derroteros, reporte listado de coordenadas, ploteo de puntos, ajuste de áreas predeterminadas, cálculo de tarifas y utilitarios para la región de Costa Rica. |

| **backcons.zip** | 3k | 04-02-03 | | **backCons** Function backCons(_constant) represents backgrounds for all pre-defined constants in the TI-89 and for fine-structure constant _alpha (with greek letter alpha). Background of the constant can be "measured" or a formula involving other constants. |

| **bac.zip** | 8k | 05-12-17 | | **Blood Alcohol Concentration Calculator** This is a Blood Alcohol Concentration calculator. Simply enter your information, and your approximate BAC is displayed. |

| **bands.zip** | 1k | 99-11-07 | | **Bands v1.0** Bands calculates the resistors with 3 and 4 bands on them |

| **basic_periodic.zip** | 11k | 06-08-05 | | **Periodic Table 2.0** Just as it says, a fully interactive periodic table in BASIC! It has every bit of element info that I could squeeze into a single dialog box. If there are any bugs or inaccuracies, please e-mail me. |

| **basiun.zip** | 2k | 04-02-03 | | **baSIun** BaSIun(_unit) is a function which represents composed SI units with basic SI units. Mechanical SI units are represented with _kg, _m and _s. Electromagnetic SI units are represented with _m, _s, _A, _V and _ohm. |

| **bda.zip** | 48k | 12-06-17 | | **Block Diagram Model Simulator** Block diagram algebra simulator for TI89, TI92P and Voyage. Simulates continuous and discrete dynamical systems described by a block diagram algebra model like Simulink. Unlike the Simulink do it symbolically and return the resulting response of the system as an algebraic expression instead of a numerically calculated response. That’s useful when you are about to manipulate with the system response through equations further. Particularly exams and tests where there is necessary to write the results down on paper as an expression and where you are barely supposed to have an instrument do it for you so you every time leave an impression of doing it by your head and hand. Draw a chart of the response interpreted as an expression is a fundamental feature of these calculators. |

| **bee.zip** | 1k | 02-11-12 | | **Basal Energy Expenditure** A program that calculates your Basal Energy Expenditure. |

| **bhasoferlind.zip** | 1k | 10-06-08 | | **reliability index b Hasofer-Lind by iteration** calculating reliability index b Hasofer-Lind by iteration. |

| **bjt.zip** | 3k | 01-03-25 | | **BJT´s** Este programa te permite, calculcar facilmente, la corriente colector, corriente base y voltaje colector emisor, funciona para transistores NPN, PNP, de Silicio y de Germanio. |

| **bmi89.zip** | 3k | 05-12-24 | | **BMI89** BMI() is a useful little program that calculates your BMI, (Body Mass Index), and classifies it into four different categories: Underweight, Normal, Overweight, and Obese. See readme for details. Try for yourself! |

| **bmiimc.zip** | 281k | 11-01-14 | | **Body Mass Index (BMI) / Indice de Masa Corporal (IMC)** ENGLISH: This programs calculates the Body Mass Index (BMI) giving the category of such BMI and the ideal mass for the given height. TI-89, TI-92, TI-92 Plus, Voyage 200 and TI-89 Titanium compatible. ESPAÑOL: Este programa calcula el Índice de Masa Corporal (IMC) dando la categoría de tal IMC y la masa ideal para la estatura dada. Compatible con TI-89, TI-92, TI-92 Plus, Voyage 200 y TI-89 Titanium. |

| **bmi.zip** | 1k | 03-12-08 | | **Body Mass Index v.1.0** BMI Calcultion program. As BMI increases, the risk for some disease increases. Like Diabetes, Premature death, Cardiovascular, disease, High blood pressure, some cancers... It is better to prevent. |

| **bodeplot.zip** | 2k | 99-12-08 | | **Bode Diagrams** Magnitude and Angle plots on a splitted screen. |

| **bode.zip** | 3k | 99-02-28 | | **Bode 89 v1.0** This is a program for calculation of bode coefficients. It does not draw a graph but it does all the other stuff. Bode is used in Regulator teknics. It s perhaps more scientific, I don t know. We use it in class |

| **bodyfat.zip** | 5k | 00-09-26 | | **Body Fat Calculator** Calculate your body fat percentage. This version only works for males. A feature for females will be added in a future version. |

| **boltcirc.zip** | 1k | 06-01-14 | | **Bolt Circle** Industrial surveying program. This program hits every aspect there is to a bolt circle. Get coordinates to each bolt, bolt chords, angle and distance to each bolt from an instrument location, distance from bolt(1) to bolt(#), even draws a pretty picture when your bolt circle center is N.0, E.0 and radius is smaller than 10. This program is a must have for all surveyors coming over to the TI world of surveying. |

| **boylelaw_lib68k.zip** | 1k | 03-05-29 | | **Boyle's Law Solver (Lib68k)** You simply pick 1 of the 4 variables to solve for and input the other 3 values. The screenshot (made w/ CalcCapture) gives an example from the 92+. You'll need to d/l lib68k seperately from: http://www.ticalc.org/archives/files/fileinfo/286/28615.html for it to work properly. |

| **boylelaw.zip** | 25k | 03-05-27 | | **Boyle's Law Solver** This package contains a Boyle's Law solver for every TI model. You simply pick 1 of the 4 variables to solve for and input the other 3 values. The screenshots (made w/ CalcCapture) give perfect examples from the 83 and 92+. Also, the 73 version works perfectly now and all codes were optimized this morning, because seeing what I did (or didn't do) 14 months ago in the originals made me sick. |

| **bullet.zip** | 1k | 03-03-08 | | **Bullet Trajectory** Enter the data and press enter. the program calculates the approximate window size to give you the [almost] exact trajectory of the bullet/projectile/object/teacher |

| **bytes68k.zip** | 3k | 03-05-05 | | **Bytes Helper** You use this like a function. Type in 'bytes(', then how many units, a comma, then y from 1024^y for bytes (0), kilo (1), mega (2), giga (3), or tera (4). The answer will be shown in a popup window. Here's an example, for 3 gigabytes: 'bytes(3,3)'. Email me any comments. Made for the TI-89, TI-92, TI-92+, and Voyage 200. |

| **calrmtry.zip** | 49k | 08-01-24 | | **Calorimetry** This program solves problems involving heat transfer between components of an isolated system. It handles phase changes as well as processes involving temperature changes. Either numerical or symbolic solutions can be found. Several examples are included. This update fixes an editing problem. |

| **catts.zip** | 4k | 00-12-30 | | **Thermodynamic Tables** Thermodynamic tables (Saturated Water) |

| **ccai_cal.zip** | 3k | 01-12-16 | | **ccai calculations for ti-89** Just calculates the CCAI number of a heavy fuel oil, and that's it...boring but quite useful. |

| **ccdequation.zip** | 17k | 06-12-10 | | **CCD Equation** This is the handy program that allows to find singal to noise or integration time required for a given signal to noise. This program even prints out the steps needed to find the answer. For a listing of terms that I use, read the readme file. |

| **cdna.zip** | 1k | 11-06-23 | | **cDNA** Input the nitrogenous bases of an mRNA strand and output the bases of its complementary DNA strand. This simulates the creation of cDNA when reverse transcriptase is applied to mRNA. |

| **center_of_mass_89.zip** | 5k | 07-07-26 | | **Center of Mass** Enter the upper function, the lower function, the lower bound, the upper bound, and the density of the region to calculate the center of mass of the region. |

| **centeroglgm.zip** | 8k | 02-04-08 | | **Centers of Mass (Gravity)** This program calculates the coordinates of the center of mass of a region. The user enters two functions that create a region, the density function, and the interval from a to b. Using this data, the program calculates the coordinates of a point (x,y) that is the center of mass of that region. |

| **cfkconv.zip** | 1k | 00-11-24 | | **CFK Converter v1.1** A program that converts between Celsius, Fahrenheit and Kelvin |

| **ch15kine.zip** | 1k | 01-06-12 | | **Chapter15-Kinetics ** Kinetics, rate equation, etc. |

| **ch17abpr.zip** | 3k | 01-06-12 | | **Chapter 17-Acid and Base Properties** |

| **ch18abrn.zip** | 1k | 01-06-12 | | **Chapter 17-Acid and Base Reactions** |

| **ch19solu.zip** | 2k | 01-06-12 | | **Chapter 19-Solubility** Chapter 19-Solubility Constants, Ksp |

| **ch20ther.zip** | 2k | 01-06-12 | | **Chapter 20-Thermochemistry ** Chapter 20-Thermochemistry Deals with Gibbs Free Energy, Heat, enthalpy, entropy, and how they are all related by several equations. |

| **ch21redx.zip** | 8k | 01-06-12 | | **Chapter 21-Redox** Chapter 21-Principles of Reactivity: Electron Transfer Reactions, deals with primarily the principles and driving factors behind redox reactions |

| **ch23xelm.zip** | 11k | 01-06-12 | | **Chapter 23-Transition Elements** Chapter 23-Properties of Transition Elements, deals with the crystal field theory, dq's, and how they are related to transition element compounds, coordination compounds, chelates, and structural/optical isomers. |

| **chaos.zip** | 2k | 00-04-05 | | **Chaos Theory Programs** Various Examples of Chaos Theory |

| **chem1a.zip** | 1k | 01-06-12 | | **Chem 1A Review** A text file of a summary of the first half of Chem 1A, General Chemistry (Inorganic Chemistry). |

| **chem1.zip** | 1k | 99-06-13 | | **Chemistry Final Notes** Notes for the chemistry final. |

| **chem-89.zip** | 1k | 98-11-21 | | **Chem-89 v1.0 Beta** Atomic mass variable generator. All symbols on the Periodic table are variables, and their atomic masses are their values. |

| **chembond.zip** | 1k | 00-06-15 | | **Chemical Bonds** This is a program that tells the characteristics of the following chemical bonds: nonpolar-covalent, polar-covalent, ionic, and metallic. |

| **chem.combustn.zip** | 1k | 12-07-04 | | **Combustion Reaction Analyzer** Given the products of a combustion reaction in grams or moles (C, H, O), this program can find the empirical formula of the non-O2 reactant. |

| **chem.empircal.zip** | 1k | 12-07-04 | | **Empirical Formula** Convert grams to an empirical formula. |

| **chemie.zip** | 18k | 05-01-11 | | **Chemie** A Chemical Engeneering thermodynamics program including various equations |

| **cheminterface.zip** | 7k | 10-04-07 | | **Chemistry Interface** Enter compounds into the friendly interface. masses can be entered in grams, moles, or liters. The chemical equation will be put through a stoichiometry and balancing calculation. Answers, limiting/excess reagents, percent yield, and theoretical yields are displayed. |

| **chemislv.zip** | 37k | 03-07-11 | | **CHEMISLV - Chemistry Equation Solver v4.11** Chemistry equation solver for the TI-89/92+/V200 - balances chemical reaction equations |

| **chemistryset.zip** | 9k | 12-03-07 | | **Chemistry Set v1.0** This is a set of multiple programs that are used in Honors Chemistry. Includes average deviation, bohr's equation, dibrogly's equation, igeal gas law, MO theory, and wavelength/frequency/energy solver |

| **chem.limiting.zip** | 1k | 12-07-04 | | **Limiting Reactant** Find limiting reactant, left over reactant(s), amount of product created. |

| **chemper.zip** | 1k | 00-08-29 | | **ChemPer** Converts a Gram amount of Element -X- to Mole Percentage. |

| **chemtools.zip** | 1k | 00-03-20 | | **Chemistry Tools 89 v1.0** |

| **chemutilspro.zip** | 12k | 03-03-09 | | **ChemUtils Pro** ChemUtils is a collection of two functions, "moles", and "grams." Both functions have the following syntax: function("chemical formula,n") The moles function returns the number of moles of a given (n) number of grams. The grams function returns the number of grams in a given (n) number of moles. The molecular weight data is not cropped to 3 decimal places, like you see on many periodic tables. The data is provided to as many decimal places as are known. The molecular weight data included in the program is from a reliable source (Kentek Laser Company), but you can use your own molecular weight data, if, for example, you want to have identical numbers to your chemistry classmates, who are all using the table in the textbook, which has idosyncratic molecular weight listings. Because these utilities are FUNCTIONS, you can use them in calculations. For example, you could enter grams("C6H12O6")+grams("H2O,3") on the entry line to get the molecular weight of one mole of glucose and 3 moles of water. Most other utilities like these are programs; they will display the result on the screen, but you can't use it in a calculation just like you can use any other claculator function (e.g. log(),sin(),cos()etc.) This takes the busy-work out of all those boring stoichiometry probkems on chemistry tests. No more squinting at the tiny atomic weights on the big periodic table in the front of the class room. |

| **chem.zip** | 2k | 00-09-24 | | **Chemistry Unlimited 89** Great chemistry program that does these problems: Grams-Moles, Moles-Grams, Volume-Moles, Moles-Volume, Mass-Mass, Volume-Mass, Mass-Volume, Volume-Volume. A must-have for any chemistry student. |

| **chi2gau.zip** | 2k | 03-03-05 | | **Chi Square Test for Gauss Distribution** This program calculate the chi-square of a distribution respect a normal (Gauss) curve. |

| **chisqr.zip** | 1k | 03-03-05 | | **Chi Square Test Generic** This program calculates the chi-square of a distribution. You have to insert the number of intervals, then the experimental value and the theoretically predict value. |

| **chi_square.zip** | 1k | 02-11-12 | | **Chi_ Square Solver** For Biology When Need To Chi-Square Problems. You input first two columns, it shows all five and tells the percentage of those results or worse happening and also accept or reject and error or chance. It goes up to 8 data rows... |

| **churchillcorrelations.zip** | 1k | 03-03-09 | | **Churchill Correlation** Computes the friction factor (f) for use in the Bernoulli Equation's Hf term via the Churchill Correlation. Input values needed are: Reynolds Number (Re), "Roughness Factor" (K), and Pipe Diameter (D). |

| **cinetifr.zip** | 16k | 00-03-01 | | **Cinetic v2.0 (French)** Entrez graphiquement votre circuit de dipoles electrocinetiques (resistances, capacites, generateurs de courant, etc...), Cinetic vous fournie l'expression literalle de tous les potentiels du circuit et effectue la convertion en equations differentielles. (Fichier d'aide HTML) |

| **cinetius.zip** | 13k | 00-03-01 | | **Cinetic v2.0** Draw your circuit with resistances, condensers, selfs, generators... Cinetic will calculate all the potentials (formal calculus) of every node, and give the differential equations of the circuit. (Help file included). |

| **circuitscir.zip** | 5k | 05-10-19 | | **Circuits 1 and 2(DC AND AC)** This program is for Circuits 1 and 2(DC AND AC) circuitanalysis. Calculates parallel resistor values, Series capacitors,Parallel capacitors,Voltage division and Current division,impeadances,power,and "Eq-Solver which solves 2,3,4 equations written by Jesse Lai" 2 programs in one.The best circuits program written |

| **circuits.zip** | 8k | 03-08-26 | | **Physics Solver v1.2--Circuits** A physics program which will allow you to solve for any variable from 5 different equations relating to circuits. |

| **civil.zip** | 22k | 04-05-25 | | **Civil Engineering** This is a group of programs made to help in RCC and Structure solveing.It includes Slab Design,Beam Design,Shear,Coloum Design,Footing Desing,Gurder Design,Stair Design and Design of etaining wall.Where in Strucutre it handels with Flexibility Method for Beams and Frams,Stiffness Method for Beams and Frams,Finite Method for Truses,and Shape Factor... |

| **cktdraw.zip** | 7k | 99-11-06 | | **CKTDRAW v2.0** The circuit drawing program for ti-89. Includes about 40 symbols! |

| **classactphysics.zip** | 4k | 06-03-11 | | **ClassAct - Physics 2.0** A library and solver of all basic physics equations. This single program contains all the equations that Physics Solver 1.2 has, while taking a little over a tenth of the space. This is a partial distribution of the physics portion of the ClassAct Suite; package is 11751 bytes. |

| **cmt.zip** | 31k | 13-05-06 | | **Ultimate Chemistry** This program allows you to use over 30 formulas in chemestry. From Gas Laws to the wavelenght, Roult's Law, Braggs equation, Velocity, Energy and others. It also finds molar mass from Molarity, Molality, Osmotic pressure and others. You can find the specific heat of a metal in the laboratory, find the mass percent, and the mol fration and even the radius of an element if you have its density. Just plug in the information and presto, you get the answer. Ideal to check your answer in class and on the test. It is only one single file and does not make unwanted variables. |

| **cmu89.zip** | 1k | 00-05-01 | | **Computer Memory Units** Adds computer memory units to your calc |

| **cof2d.zip** | 58k | 06-10-27 | | **Center of Gravity 2D** This function calculates the center of gravity of a convex polygon given the matrix of vertexes. |

| **colebrook.zip** | 3k | 09-08-11 | | **Colebrook** ENGLISH: This function solves the Colebrook equation for the DarcyWeisbach friction factor using Newton-Raphson method with Haaland as initial guess. TI-89, TI-92, TI-92 Plus, Voyage 200 and TI-89 Titanium compatible. ESPAÑOL: Esta funcion resuelve la ecuacion de Colebrook para el factor de friccion de DarcyWeisbach usando el metodo de Newton-Raphson con Haaland como aproximacion inicial. Compatible con TI-89, TI-92, TI-92 Plus, Voyage 200 y TI-89 Titanium. |

| **collide.zip** | 2k | 02-06-01 | | **Collisions** This program determines results (final velocities and information on energy loss or the coefficient of restitution) of head-on collisions between 2 objects. The masses and initial velocities of the objects must be entered. For inelastic collisions, either the coefficient of restitution or the percent energy loss must be entered. All results are copied to the home screen. |

| **collisions.zip** | 8k | 05-05-17 | | **One-Dimensional Collisions** This program solves head-on (one-dimensional) collision problems. It will also handle explosions in which one object breaks into two pieces. This is a considerably revised version of collide(). The previous program required initial values as input and calculated final values. Collisun() allows entry of either initial or final values, or almost any combination of initial and final values. Although any system of units can be used, all quantities must be expressed in the same system of units. Entered values and results can be edited for use in another calculation. All solutions are copied to the home screen. |

| **collision.zip** | 1k | 09-10-15 | | **Collision Velocity Calculator** Enter mass and velocity of 2 objects, as well as the coefficient of restitution, and determine the final velocities of the 2 objects. |

| **combustti89titanium.89p** | 1k | 11-04-09 | | **Combustion** This program calculates the empirical formula of any compound given the mass of H2O and CO2 produced in the reaction or the amount of Hydrogen and Carbon available in the reaction. |

| **commeng.zip** | 12k | 06-01-28 | | **Engineering Solutions for Voice and Data Computations** The program gives solutions to the "bread and butter" problems encountered daily by electrical engineers and students working in the field of voice and data communication. I hope that the program will clear up some mysteries surrounding dB's, dBm's, voltage and power measurements. |

| **compname.zip** | 1k | 01-06-12 | | **Naming Inorganic Compounds** Basic methods for naming general inorganic compounds (for naming coordination compounds, see Chapter 23: Transition Elements & Coordination Compounds). |

| **computer.zip** | 2k | 04-01-24 | | **Hard Drive Formatted Capacity Computer** This is a utility to compute the formatted capacity of a computer hard drive given the manufacturer's stated capacity. It can also perform the inverse conversion - that is, given the formatted capacity, find the manufacturer's stated capacity. Reuploaded because of a problem where TI Connect for Windows couldn't read the program file - now fixed. |

| **conduct.zip** | 29k | 05-11-29 | | **Conductimetrie** calculer facilement la conductivité d'une solution de 2 ion easy calc conductivity of a solution of two ion |

| **connet89.zip** | 110k | 06-10-27 | | **Automatic Control Networks Analysis v 2.02** It's a very powerful program that allows an advanced analysis in Bode diagram of a transfer function and of a user entered control network. You can try different solutions and analyze their fundamental parameters: 0 decibel frequency, phase margin, gain margin and eventually peaks. You can also chose and trace different types of drawing: real and asymptotic TF graph and phase graph. |

| **constellaltion.zip** | 4k | 01-03-25 | | **Constellation** Il s'agit d'un simulateur de Gravitation. Placer vos corps dans un repere, assigner leur une masse , un vecteur position et vitesse initiale et lance la Simluation !!! |

| **cons.zip** | 11k | 05-11-26 | | **Fundamental Constants** Program Cons() represents 29 fundamental scientific and mathematical constants with abbreviations, names, values and formulas. Seven of these constants are not built in TI-89. These constants can be copied in variables. |

| **controls.zip** | 1k | 99-02-28 | | **Controls v4.0a** A program mainly used by the programmer of C , assembly, and TI basic. converter of Hex, Bin, Dec. ASCII Table. Get keys Codes. ETC..... |

| **control.zip** | 11k | 01-06-04 | | **Control Theory Toolbox v1.1** The Control Theory Toolbox 1.1 is a collection of functions and programs to aid in solving control theory problems on the TI-89 and TI-92+ calculators. Bode and Nyquist plots can be generated, and there are functions to find poles and zeros, and calculate the vector margin. Gains and tranfer functions are expressed in the form they are commonly written on the blackboard, for example: 1/s and (s^2+s+1)/(s+3)(s+5). |

| **converterv1.2.zip** | 3k | 03-11-03 | | **Converter v1.2** Use for OS v2.06 It includes all of the following units: Volume: Cubic meter Cubic decimeter Cubic centimeter Cubic millimeter Hectoliter Liter Deciliter Centiliter Milliliter Microliter Barrel Gallon Quart Pint Acre Foot Gill Ounce Bushel Peck Cubic yard Cubic foot Cubic inch Area: Square megameter Square kilometer Square hectometer Square decameter Square meter Square decimeter Square centimeter Square millimeter Square micrometer Square nanometer Square Picometer Square inch Square foot Square yard Square mile Square nautical mile Square acre Distance: Megameter Kilometer Hectometer Decameter Meter Decimeter Centimeter Millimeter Micrometer Nanometer Picometer Inch Foot Yard Mile Nautical mile Acre Time: Second Minute Hour Day Week Year Century Millennium Pressure: Pascal Millibar Kilopascal Bar Inch of mercury Cm of mercury Mm of mercury Inch of water Cm of water Ft of water Psf Psi Standard atmosphere Torr Temperature: Celsius Fahrenheit Calvin |

| **converter.zip** | 3k | 03-10-06 | | **Unit converter** It includes all of the following units: Volume: Cubic meter Cubic decimeter Cubic centimeter Cubic millimeter Hectoliter Liter Deciliter Centiliter Milliliter Microliter Barrel Gallon Quart Pint Acre Foot Gill Ounce Bushel Peck Cubic yard Cubic foot Cubic inch Area: Square megameter Square kilometer Square hectometer Square decameter Square meter Square decimeter Square centimeter Square millimeter Square micrometer Square nanometer Square Picometer Square inch Square foot Square yard Square mile Square nautical mile Square acre Distance: Megameter Kilometer Hectometer Decameter Meter Decimeter Centimeter Millimeter Micrometer Nanometer Picometer Inch Foot Yard Mile Nautical mile Acre Time: Second Minute Hour Day Week Year Century Millennium Pressure: Pascal Millibar Kilopascal Bar Inch of mercury Cm of mercury Mm of mercury Inch of water Cm of water Ft of water Psf Psi Standard atmosphere Torr Temperature: Celsius Fahrenheit Calvin |

| **convertnautstat.zip** | 1k | 05-10-08 | | **Convert Between Statute and Nautical Miles** The .zip file contains two functions that convert between statute and nautical miles. It's pretty self-explanatory, but you can check out the ReadMe. |

| **convert.zip** | 1k | 02-03-16 | | **English-SI Converter v1.2** Not only does this program convert English to SI and vice versa, but also converts English to English and SI to SI. It converts units of length and units of temperature (Kelvin, Celsius, and Fahrenheit). This program has no known bugs or flaws, if you find one, please email me at bandit0888@icqmail.com. |

| **coulomb.zip** | 1k | 10-01-31 | | **Coulomb's Law** simple program used to find the force between 2 charges |

| **cpcalc13.zip** | 33k | 05-09-29 | | **CP Calculator v1.3** This is an extremely simple yet useful program to be used in elementary energy balance courses and other chemical engineering applications, is used to perform change of Enthalpy calculations involving a simple compound or a mixture of chemical substances, it can be used with a given mol number or specific value, you can also include phase changes,and then it calculates the change of enthalpy between a given initial temperature to a final temperature. With the constants of heat capacity for the compound(s), the cp equation type and the enthalpy of phase change (if applicable). (you can find the constants in chemistry and chemical engineering literature i.e. Felder, Himmelblau, Perry, then you simply enter the values and get the calculations. It simplifies the hard work of evaluating the integrals for the cp polinomial by hand and specially when there are more than 2 compounds. |

| **crcuits.zip** | 64k | 07-12-15 | | **Multiloop DC and AC Circuits** This program uses the loop current method to solve multiloop circuits, either DC or AC. It can be used to solve for currents, voltages, charges (on capacitors), or resistances (impedances for AC). Several examples are included to illustrate the method. |

| **crosshidraulic.zip** | 18k | 10-06-08 | | **Cross Hidraulico** Method of hardy cross for hidraulica circuit |

| **cross.zip** | 31k | 04-07-24 | | **Cross v1.7** Programa para realizar el análisis estructural de vigas continuas utilizando el método de dristibución de momentos. Los resultados obtenidos son los momentos internos en los extremos de cada nodo. |

| **cst124.zip** | 496k | 04-03-08 | | **Control System Toolbox for TI-89 release 1.2.4** This is a bug-fixed release for Control System Toolbox release 1.2.3 |

| **cst.zip** | 268k | 05-11-02 | | **Control System Toolbox r1.3** CST r1.3 is a suite for Control Systems Analysis, Design and Tuning. CST features Continuous and Discrete Time Transfer Functions, Time Delay, Bode, Nyquist, Root Locus and Step Response Plots, Laplace and Zeta Tranformations, Mag and Phase Margins, Lead and Lag Networks Design, P, PI, PD, PID Design and Tuning and much more... |

| **ct.zip** | 26k | 03-01-01 | | **Control's toolbox v1.16** Control's toolbox v1.16 The fastest program for frequency plot of a transfer function (Bode, Nichols and Nyquist plots)! You can also display a linear or logarithmic table of the plot, calculate the margin of stability of the closed loop function, the Routh-Hurwitz matrix, solve the Lyapunov equation, plot the root locus and much more! Note: CT uses a custom routine to calculate the phase (doesn't use the angle() function), and a custom routine for faster calculation of the amplitude plot. |

| **curden.zip** | 1k | 02-10-15 | | **Current Density** This is a simple program that will calculate the current density, density of valence electrons, drift velocity, and average time between collions. |

| **currentdensity.zip** | 1k | 02-10-23 | | **Current Density** This is a simple program that will calculate the current density, density of valence electrons, drift velocity, and average time between collions. This is an updated form of my last program. It is easier to use. |

| **currents.zip** | 9k | 03-08-26 | | **Physics Solver v1.2--Electrical Currents** A physics program which will allow you to solve for any variable from 5 different equations relating to currents. |

| **d1colide.zip** | 2k | 00-06-15 | | **One-Dimensional Collision Calculator** Calculates results of a one dimensional collision between two objects (UPDATED). (Physics) |

| **danswap.89p** | 1k | 02-03-12 | | **Weak Acid & Ka** This is my first real program (it does work). You are free to do with it what you plaese. If you change it, please mail me. I would be glad to hear from you. |

| **datafit.zip** | 5k | 03-10-19 | | **Data Plotter and Curve Fitter** This program plots data points then gives you a choice of regression types to fit a curve to the data. This update changes the method of data input and improves the editing process. x,y coordinates of points may be entered one at a time or an existing 2 column matrix can be entered. Datafit() includes all regression types on the TI-89 as well as a polynomial regression program, Polyfitn(), which allows you to choose the degree of the polynomial. It's easy to try various regression types and see the results quickly. Even if you don't need to fit a curve to the data, it's a quick way to plot data. |

| **datamanagerfp89.zip** | 72k | 06-10-27 | | **Data Manager Fluids Data Pack** It's a package of datas relative to the most common fluids: water, ice, dry and wet air, methane and other technical fluids. The package contains also the archive matrix to use it with Data Manager. |

| **datamanagergp89.zip** | 60k | 06-10-27 | | **Data Manager Gas Data Pack** It's a package of datas relative to the Temperature, Energy, Enthalpy and Entropy of most common gases: Air, CO, CO2, H2, N2, O2. The package contains also the archive matrix to use it with Data Manager. |

| **data.zip** | 5k | 07-10-11 | | **Data Conversion** This program converts data up and down the scale. For example, this program tells you that 64 MB is 65536 KB, not 64000 KB like you may think. It can convert from bytes up to petabytes, and you can go up and down the scale. The program is small and easy to use. Have fun converting I guess. |

| **datos_estadistica.zip** | 87k | 06-03-18 | | **datos estadistica** For those who are familiarized or be seeing a course of descriptive statistic they interpreted the results obtained in the chart calculated with DATA STATISTIC #The columns indicate the class interval, class mark, absolute frequency, absolute frequency accumulated upward, descending accumulated absolute frequency, relative absolute frequency, absolute frequency accumulated upward relative, relative descending accumulated absolute frequency respectively #The program makes use of the approach of the standardized variable Z that indicates the presence of extreme data or atypical inside the entered values, calculated as Z = (media_aritmetica - I date) / (desviaciòn_estandar) if this result is bigger at 3 in absolute terms is considered extreme or atìpic, in consequence DATA STATISTIC omit this values in the calculations #the I number of data it should be bigger at 20 according to the theory |

| **daylight.zip** | 15k | 07-02-24 | | **Daylight** Daylight() is a program which calculates next data for any location on the Earth: Sunrise, sunset and daylight times (for selected day/week, for symetrical days and for two selected days - with time differences); Prolongation of the daylight from the shortest daylight to the selected day; The Sun's culmination (time, angle) and declination on the selected day; Number of days between two dates. |

| **dbm.zip** | 81k | 08-02-17 | | **dBm Calculator** dBm Dezibel power calculator- dBm to gain factor and vice versa. Easy to install and use. You can stop the programm anytime using the escape key. Comes comlete with c source code, from J.Daldosch, its one of 2 useful progies, dBm and dB. |

| **db.zip** | 78k | 08-02-17 | | **dB Calculator** dB Dezibel calculator- dB to gain factor and vice versa. Easy to install and use. You can stop the programm anytime using the escape key. Comes comlete with c source code, from J.Daldosch |

| **designofwaterconveyancech.zip** | 7k | 08-05-27 | | **Design of Water Conveyance Channels** A program for water engineers and everybody else who is familiar with open channels hydraulics water conveyance structures. |

| **dft89.zip** | 17k | 11-03-09 | | **Discrete Fourier Transform (DFT)** Discrete Fourier Transform calculates the DFT on a sequence of any length. |

| **dico.zip** | 45k | 01-06-01 | | **Dico v3.50 (french)** tout le programme des classes prepas (Maths Sup & Maths Spé) en Maths et Physique-Chimie |

| **diffract.zip** | 9k | 03-08-26 | | **Physics Solver v1.2--Diffraction** A physics program which will allow you to solve for any variable from 5 different equations relating to diffraction and interferance of light. |

| **dioptre.zip** | 6k | 00-03-01 | | **Dioptre Calc (French)** Optical tool |

| **disemaqu.zip** | 1226k | 07-03-22 | | **Disemaqu, Machine Design -Diseño de Máquinas-** [ENGLISH] This program facilitates the design of different machine elements and power transmission, as chains, straps, gears and the bearings. The programs were developed using catalogues and guides of manufacturers like Goodyear, Intermec Colombia, SKF and the academic book Design in Mechanical Engineering 6ª Edition, Joseph E. Shigley. The contents are: 1 Chains of Rollers, 2 Strap, 3 Gears, 4 SKF Bearings. [ESPAÑOL] Este programa le facilita el diseño de diferentes elementos de máquina y transmisión de potencia, tal como lo son las cadenas de rodillos, las correas, los engranajes y los rodamientos. Los programas fueron desarrollados usando catálogos y guías de fabricantes como Goodyear, Intermec Colombia, SKF y el libro académico Diseño en Ingeniería Mecánica 6ª Edición, Joseph E. Shigley. Los contenidos son: 1 Cadenas de Rodillos, 2 Correas, 3 Engranajes, 4 Rodamientos SKF. |

| **diseo_de_ejes.zip** | 97k | 08-02-28 | | **SHAFTS / EJES v2.0** ENGLISH: This program is a help for power transmission shafts design. You can design this machine element using the english or the international units system. TI-89, TI-92, TI-92 Plus, Voyage 200 and TI-89 Titanium compatible. ESPAÑOL: Este programa es una ayuda para el diseño de ejes de transmisión de potencia. Usted puede diseñar este elemento de máquina usando el sistema de unidades internacional o el inglés. Compatible con TI-89, TI-92, TI-92 Plus, Voyage 200 y TI-89 Titanium. |

| **dmv.zip** | 1k | 99-10-10 | | **Density, Mass and Volume Solver** This program solves either Density, Mass or Volume using the basic equation of D=M/V. This is very useful in Chemistry class. |

| **dna2amino.zip** | 13k | 05-06-25 | | **DNA to AMINO ACID** Takes a string of DNA and converts it into mRNA and thn produces a sequence of amino acids |

| **dnacomplement.zip** | 1k | 11-04-19 | | **DNA Complement** Enter the nitrogenous bases of a strand of DNA and find the sequence of bases on its complementary strand. |

| **dna.zip** | 1k | 98-11-21 | | **DNA v1.5** A Useful tool for bio class |

| **dragcoefficient89.zip** | 59k | 06-10-27 | | **Drag Coefficient Calculator** This program calculates the hydraulic drag coefficient by Reynolds number and roughness coefficient choosing the correct range (sleek pipe, lumpy pipe or intermediate) and using the most well-known formulas |

| **drawcirquitdiagram.zip** | 7k | 09-05-11 | | **Draw cirquit diagram** [updated from "Draw electric schematic" to 1.0] Draw wires and electrical symbols. Simple program but does the job fairly nice and easily. Suggestions and/for extra components are more than welcome! Don't hesitate to ask. CHANGES: - Move cursor without drawing wire - Text placement - Documentation intro can now be skipped with ESC - Documentation updated including in-program. |

| **e01_2001.zip** | 25k | 01-06-03 | | **Estructuras 2001** This an enginering program to calculate reactions, centriods, morh's circle and others stuff(Only in Spanish for now) |

| **easter.zip** | 1k | 04-04-11 | | **Date of Easter** Compute, for a given year, the date of Easter |

| **easykin.zip** | 1k | 98-10-23 | | **Easy Kinematics Program** Solves kinematic problems for each variable. |

| **econf.zip** | 1k | 00-12-10 | | **EConf v1.0** This is a set of two functions for finding the full electron configuration and the abbreviated electron configuration. They return the configuration in a string so they can easily be incorporated into any program or used alone. Very small. |

| **econgthr.89p** | 1k | 01-12-22 | | **Economic Growth Rate** Figures economic growth rate. Must understand Macroeconomic basics to use. |

| **economia.zip** | 1888k | 08-03-25 | | **Ingeniería Económica / Economical Engineering v1.2** ENGLISH: This program is a help in Economy for Engineers or Economical Engineering which speeds calculation process. Equations: Composed Interest, Valuations, Advanced vs. Due, Uniform Series, Arithmetic Gradient, Geometric Gradient, Echeloned Gradient and Combined Fluxes. TI-89, TI-92, TI-92 Plus, Voyage 200 and TI-89 Titanium compatible. ESPAÑOL: Este programa es una ayuda en Economía para Ingenieros o Ingeniería Económica el cual agiliza los procesos de cálculo. Ecuaciones: Interés Compuesto, Tasas, Anticipada vs. Vencida, Serie Uniforme, Gradiente Aritmético, Gradiente Geométrico, Gradiente Escalonado y Flujos Combinados. Compatible con TI-89, TI-92, TI-92 Plus, Voyage 200 y TI-89 Titanium. |

| **ecslv.zip** | 16k | 02-02-16 | | **Electric circuit solver R3** Electric circuit solver for TI89 and TI92P solves voltage in all nodes and current in all elements of electric circuit. Needs Laplace and Z transform. |

| **ecuacion.zip** | 786k | 07-03-23 | | **Ecuacion, equations manager Administrador de Ecuaciones-** [ENGLISH] ECUACION gathers an important data base of equations (almost 900 in total!) extracted from the Pensum of Mechatronics Engineering form the San Buenaventura University, as well as tools for engineers. Within these is a tool to solve and manage (save as many eqs as you want, organizing them in topics and sub-topics, you can edit, delete, export, import and back-up) equations, systems of equations and a program to solve differential equations of 1st and 2nd order. [ESPAÑOL] ECUACION reúne una importante base de datos de ecuaciones (casi 900 en total!) extraídas del Pensum de la carrera de Ingeniería Mecatrónica de la Universidad de San Buenaventura, así como herramientas generales para ingenieros. Dentro de estas se encuentra un sistema de evaluación, solución y despeje de ecuaciones, sistemas de ecuaciones y un programa para resolver ecuaciones diferenciales de 1er y 2do orden. Puede administrar por temas y grupos todas las ecuaciones que quiera, puede agregar, editar, borrar, exportar, importar y hacer back-up. |

| **eenergy.zip** | 1k | 03-10-13 | | **Electric Potential** This FUNCTION solves for the electrical potential of a system of particles. This is very useful for E&M Physics classes and saves a lot of time. Just input the x, y, and z positions of the particles, and the charges of the particles and VOILA! There's your answer! Hope you like this and all of my other programs! Note: If you are working with particles in only 2 dimensions or 1 dimension, just set the z (and y) values to zero...The function will still work for these types of problems. |

| **eeprojr.zip** | 3k | 00-02-19 | | **EE*PROjr. v1.04 ** An electonics software package, designed for the average High School student. Contains a four band resistor value calculator, and a "unit manipulated" Ohm's Law program. |

| **efield_2.zip** | 3k | 02-07-15 | | **Electric Fields Due to Point Charges in a Plane** This program calculates the net electric field at any point in a plane due to any number of point charges lying in the plane. The charges, their coordinates and the coordinates of the point P at which the field is to be calculated must be entered. The program calculates the magnitude and direction of the net field at P. You then have the option of displaying 2 types of vector diagrams. The first shows the individual fields due to each charge. The second is the vector addition polygon showing the net field. |

| **efield_3.zip** | 2k | 02-07-15 | | **Electric Fields Due to Point Charges (in 3-dimensions)** This program calculates the net electric field at any point in space due to any number of point charges. The charges, their coordinates and the coordinates of the point P at which the field is to be calculated must be entered. The program calculates the net field at P and displays the result in rectangular, spherical, and cylindrical vector formats. |

| **eformula.zip** | 23k | 99-11-05 | | **Electrical Formulas v1.0** This program calculates Amperage, Watts, Voltage, Resistance and much more, It has a built in resistor color code converter/coder. It's a very helpful program if you are an electronic hobbyist or studying AC/DC. |

| **elctrneg.zip** | 1k | 01-06-12 | | **Electronegativity Table** A table of electronegativity values for about 40-50 of the most common elements. |

| **elecbasc.zip** | 857k | 07-03-22 | | **ElecBasc, Basic Electronics -Electrónica Básica-** [ENGLISH] ELECBASC is a compendium of theories, formulas, concepts and tools of Basic calculation of Electronics. With them, the student will be able to strengthen the theory and to make verifications numerical of contents seen in class. Later, ELECBASC will be of utility for the professionals of engineering since they will count on immediate disposition and access to these basic concepts and tools. The contents are: 1 Resistors (Ω), 1,1 Color►Value (4 bands), 1,2 Value►Color (4 bands), 1,3 R in serie, 1,4 R in Parallel, 1,5 Voltage Splitter, 1,6 Current Splitter (I), 2 Inductances (L), 2,1 Color►Value (Molded Inductances), 2,2 Value►Color (Inductancias Molded), 2,3 L in serie, 2,4 L in Parallel, 3 Capacitances (C), 3,1 Code►Value (JIS Code - Standard Industrial Japan), 3,2 Value►Code (JIS Code), 3,3 C in serie, 3,4 C in Parallel. [ESPAÑOL] ELECBASC es un compendio de teorías, fórmulas, conceptos y herramientas de cálculo de Electrónica Básica. Con ellas, el estudiante podrá afianzar la teoría y hacer comprobaciones numéricas de contenidos vistos en clase. Posteriormente, ELECBASC será de utilidad para los profesionales de la ingeniería ya que contarán con inmediata disposición y acceso a dichos conceptos básicos y herramientas. Los contenidos son: 1 Resistencias (Ω), 1.1 Color►Valor (4 bandas), 1.2 Valor►Color (4 bandas), 1.3 R en Serie, 1.4 R en Paralelo, 1.5 Divisor de Voltaje, 1.6 Divisor de Corriente (I), 2 Inductancias (L), 2.1 Color►Valor (Inductancias Moldeadas), 2.2 Valor►Color (Inductancias Moldeadas), 2.3 L en Serie, 2.4 L en Paralelo, 3 Capacitancias (C), 3.1 Código►Valor (Código JIS - Japan Industrial Standard), 3.2 Valor►Código (Código JIS), 3.3 C en Serie, 3.4 C en Paralelo. |

| **elecconf.zip** | 1k | 00-06-15 | | **Electron Configuration** This is a program that tells the principles/rules that govern electron configurations and the order of the levels of energy levels (s-f). |

| **electra.zip** | 3k | 01-12-16 | | **Electra** Lots of electrical equations plus a Ressistor color code solver. |

| **electricity.zip** | 1k | 09-10-18 | | **Basic Electricity Formulas** prompts the variables, calculates, and displays the formulas for voltage, current, resistance, power, capacitance and stored energy |

| **electric.zip** | 8k | 03-08-26 | | **Physics Solver v1.2--Electric Fields** A physics program which will allow you to solve for any variable from 6 different equations relating to electric fields. |

| **electron.zip** | 1k | 99-05-31 | | **Electron Configuration Finder v1.1** Finds The Electron Config. |

| **elements2.zip** | 4k | 03-03-05 | | **Elements v2.0** periodic table and other things about elements |

| **elements3.zip** | 10k | 00-05-12 | | **Elements v3.0** Elements Version 3.0, one of the best, if not the best, and most complete periodic table programs for the TI-89. |

| **elements_fr.zip** | 8k | 99-10-16 | | **Elements v2.718 (French)** This a periodic table plus a molar mass calculator translated in french. Easy to use. |

| **elements.zip** | 16k | 02-05-30 | | **Elements v5.1** This new version contains a grapic image, name, Atomic Mass, Valence, Electronegativity, Atomic and Ionic Radii, Electron Affinity, 1st Ionization Potential, Molar Volume, Enthalpys (Atomization, Fusion, and Vaporization), Specific Heat Capacity, Form (Crystal Structure), Density, Melting and Boiling Points, Thermal Conductivity, Type, and an Electron Configuration. Still contains Molar Mass Calculator, and now also has an Isotope Library with % of Natural Occurence! Also aloows a Temporary shutdown to conserve batteries. Entire Group contains 3 files: The main program, the image, and a data structure. Total size of group is 48133 bytes. |

| **eltec.zip** | 3k | 02-07-05 | | **ElectroTecnics ver. 0.8** It give an hand in linear circuit analyses |

| **eltrnxcc.zip** | 1k | 04-03-07 | | **Resistor Color Code Converter** Converts colored bands to resistance and tolerance, and the other way around. ;-) |

| **emechine.ieee.zip** | 1k | 09-01-09 | | **ieee 0.9** find IEEE model of an induction motor using NLT, BRT (LRT)and DC tests. (based on P.C.Sen book) |

| **emechine.oct.zip** | 1k | 09-01-09 | | **oct 0.9** open circuit test |

| **emechine.sct.zip** | 1k | 09-01-09 | | **sct 0.9** short circuit test |

| **em_fields.zip** | 5k | 01-12-22 | | **Electro-Magnetis Fields equavions** Divergent, Gradient, Laplacian, Rotor & Vector Cross Multiplicity; in Cartezian, Cylindrian and Spherical forms. |

| **emfields.zip** | 8k | 03-08-26 | | **Physics Solver v1.2--Electric & Magnetic Fields** A physics program which will allow you to solve for any variable from 5 different equations relating to electric and magnetic fields. |

| **emplpop.zip** | 1k | 05-09-24 | | **Employment population** This program figures the total percent of people employed in a country. Need basic understanding of macroeconomics to use. |

| **energy89.zip** | 1k | 00-12-17 | | **Energy v1.0** Calculates the kinetic or potential energy given a set of variables |

| **energymomentum.zip** | 1k | 09-10-15 | | **Kinetic Energy and Momentum** Enter the mass and the velocity, and calculate the kinetic energy and the momentum of the object. |

| **energy.zip** | 9k | 03-08-26 | | **Physics Solver v1.2--Energy** A physics program which will allow you to solve for any variable from 5 different equations relating to electric and magnetic fields. |

| **en.zip** | 6k | 01-07-02 | | **EN** -v0.2- This is a chemistry program that can calculate the difference in electronegativity for two elements in a compound, and then tell wether the bond between the two elements is ionic, covalent, or polar covalent. |

| **ephy4.zip** | 25k | 02-03-10 | | **Ephy 4** Periodic table of elements |

| **ephyultimate.zip** | 31k | 05-11-26 | | **Ephy Ultimate Edition (English Deal)** Periodic Table of Elements : Ultimate EDition INNOVATIONS AND UPDATES: - correction many bugs. - correction of the erroneous data. - new graphic interface. - new algorithm of displacement of the cursor (100% faster than the preceding versions). - new algorithm of posting of character string for the cards of elements. - posting of the symbol and the name of the element on the table. - supressions of the data "isotopes". - addition of my data "tyme" (family). - addition of new cards (the last elements discovered). - correction "To leave the Program": once the left program, the user returns to the screen HOME. |

| **eqso.zip** | 2k | 03-03-10 | | **Equinoxex and Solstices** The program computes, for a given year, the istant of the equinoxes and solstices. |

| **equbilan17.zip** | 7k | 01-06-01 | | **equbilan 1-7beta** un equilibreur d'equation chimique qui permet de trouver le reactif limitant les quantites finales... |

| **equbilan.zip** | 6k | 00-12-01 | | **Equbilan v1.5** (french) equlibre les equations bilans. Recherche le reactif limitant et calcule les quantites finales de tous les reactifs |

| **estructuras.zip** | 20k | 01-12-22 | | **Estructuras 6.0** Este es un programa para el calculo de reacciones en vigas estaticamente determinadas como indeterminadas. Ademas tiene utilidades como lo son calculo de circulo de morh, centroides,calculo de Q en una seccion y muchas otras mas. |

| **etron.zip** | 1k | 02-10-21 | | **Electrons** This program gives the expected electron configuration for any element |

| **euler.zip** | 1k | 06-12-10 | | **Euler Method for Physics** This program allows you to use the Euler method for physics calculations...such as air friction with gravity. |

| **ev.zip** | 1k | 03-03-05 | | **Eigen Values of a Matrix** This function calculates symbolically the eigen values of a matrix. Really easy and quick |

| **exoch.zip** | 25k | 01-04-29 | | **Exercices Chimie AcideBase** 1 dizaine d'exercices de chimie (TS) sur les Acides/Bases, format TxtRider. Compatible TI89 & TI92 |

| **fams_error.zip** | 5k | 07-10-11 | | **Error Function / Función Error** ENGLISH: Gaussian error function, complementary gaussian error function and inverse gaussian error function; these are useful, for example, in heat transfer. TI-89, TI-92, TI-92 Plus, Voyage 200 and TI-89 Titanium compatible. ESPAÑOL: Función gaussiana de error, función gaussiana de error complementaria y función gaussiana de error inversa; éstas son útiles, por ejemplo, en transferencia de calor. Compatible con TI-89, TI-92, TI-92 Plus, Voyage 200 y TI-89 Titanium. |

| **fams_resortes.zip** | 951k | 07-02-17 | | **SPRINGS / RESORTES v1.0** ENGLISH: This program helps to design this machine element. Table of mechanical properties of wire for helicoid springs included in this file. TI-89, TI-92 Plus, Voyage 200 and TI-89 Titanium compatible. ESPAÑOL: Este programa ayuda a diseñar este elemento de máquina. La tabla de propiedades mecánicas de alambre para resortes helicoidales incluida en este archivo. Compatible con TI-89, TI-92 Plus, Voyage 200 y TI-89 Titanium. |

| **fft128.zip** | 155k | 06-12-24 | | **Fast Fourier Transform 128 V3** Performs 128 points FFT on edited (built-in editor) or CBL collected data. Choose Fe, window and plot mode, etc... |

| **fft64.zip** | 150k | 06-12-24 | | **Fast Fourier Transform 64 V3** Performs 64 points FFT on edited (built-in editor) or CBL collected data. Choose Fe, window and plot mode, etc... |

| **fft.zip** | 1k | 99-12-26 | | **Fast Fourier Transform** Computer FFT for a list of data points. Uses radix of 2. |

| **filter.zip** | 1k | 04-09-06 | | **Selective Amplifier Calculation (german only)** Selective Amplifier Calculation; one-tank-input-filter for a single bjt-stage, two-tank-output-filter for that stage, the y-parameters for the used bjt, tells what the s-parameters are meaning |

| **finanzas.zip** | 576k | 07-03-22 | | **Finanzas, finance tool Herramienta de Finanzas-** [ENGLISH] FINANZAS gathers a series of programs and functions to facilitate financial calculations. It includes programs for the creation of amortization tables and depreciations, as well as a tool to solve problems using TVM (Time Value of Money), rates conversions and functions for: Effective interest rate: EFF, Nominal Rate: nom, Net Present Value: npv, Net Future Value: nfv, internal Rate of Return: irr, Cost: cst, Selling price: sel, Margin: mrg..[ESPAÑOL]FINANZAS reúne una serie de programas y funciones para facilitar cálculos financieros. Incluye programas para la creación de tablas de amortización y depreciaciones, así como una herramienta para resolver problemas utilizando la teoría TVM (Time Value of Money), conversión entre tasas y funciones para: Tasa de interés efectivo: eff, Tasa Nominal: nom, Net Present Value: npv, Net Future Value: nfv, Tasa interna de Retorno: irr, Costo: cst, Precio de Venta: sel, Margen: mrg. |

| **finitewing.zip** | 3k | 11-04-10 | | **Finite Wing** "Finite Wing" (wing.89p) uses Glauert's method (1926) to analyze finite wings with linear taper and linear washout. The solution references “Mechanics of Flight, 2nd ed.” (Warren F. Phillips, 2010). Inputs include: Number of Fourier coefficients, N; Span, b (units length); Taper ratio, R_t; Aspect ratio, R_a 3-D lift coefficient, Cl; Sectional zero-lift angle of attack, a_L0s (degrees); Maximum washout, O (degrees). Outputs include: Lift curve slope, Cl_a (per radian); Induced drag coefficient, Cd_i; Root angle of attack, root_a (degrees); Zero-lift angle of attack, a_L0 (degrees); Span efficiency factor, e_s; Kappa values (k_L, epsilon_Omega, k_D, k_DL, k_DO). |

| **fizzix89.zip** | 5k | 00-04-03 | | **Fizzix89** This Program Is a compilation of almost every equation you will ever need for the AP Physics B Exam grouped by category and implemented by the toolbar and dropdown menus! This does not do the math for you - because you have to show your work anyhow! Thusly, this program inlcudes all equations learned up through April 1st 2000 and includes Units. By May 12th, a new edition should be released that has concepts and the final touches. So easy to use, no wonder its number 1! ;) Enjoy for now!!! |

| **fizzix.zip** | 3k | 01-01-29 | | **Fizzix89 Final** This Program Is a compilation of almost every equation you will ever need for the AP Physics B Exam grouped by category and implemented by the toolbar and dropdown menus! This does not do the math for you - because you have to show your work anyhow! Thusly, this program inlcudes all equations learned up through April 1st 2000 and includes Units. Sorry for the delay, folks! Apparently - the revised edition was sitting on my old pc this entire time when I had thought I lost it to a calculator crash! Anyways, this new edition sports the long awaited concepts/final touches. So easy to use, no wonder its number 1! ;) Enjoy for now!!! |

| **fluidti_if97_eng.zip** | 643k | 03-04-13 | | **FluidTI** Software for the Industrial Formulation IAPWS-IF97 for Water and Steam |

| **fluidti_ti_89_water_eng.zip** | 162k | 05-03-07 | | **FluidTI TI89 English** Software for the Industrial-Formulation IAPWS-IF97 for Water and Steam. |

| **forces.zip** | 7k | 03-08-26 | | **Physics Solver v1.2--Forces** A physics program which will allow you to solve for any variable from 4 different equations relating to forces. |

| **force.zip** | 4k | 00-11-09 | | **Force Calculator** This is a program that helps you calculate vector forces. It gives you the force and direction that is produced when who forces act on an object. VERY useful for physics class, it does everything for you. |

| **forms.zip** | 3k | 01-04-04 | | **Formulaire Physique Chimie** Formulaire de physique chimie contenant toutes les formules de Term S, format TxtRider, compatible TI89 & TI92 |

| **form.zip** | 1k | 03-03-07 | | **FORM** Calculates Hasofer-Lind Reliability Index using FORM method. Works up to 3 variables |

| **fourcoef.zip** | 8k | 99-05-21 | | **Fourier Coeficients** Fourier Coeficients Program for 1, 2 or 3 intervals functions. |

| **freqanalysis.zip** | 5k | 05-07-17 | | **Frequency Plot v0.2** Plots frequency components of a signal with input and output values, computes "klirr"-factor. |

| **fresnel.zip** | 1k | 00-04-18 | | **Fresnel** Physics prog for Fresnel's vector |

| **gases_1.0.zip** | 3k | 03-10-23 | | **Gases Simplyfied 1.0** It does anything! volume, pressure, moles and temperature over ideal and real gases plus a table of the most used gases and their constants for real gas equation Wait for Gases 1.5 |

| **gaslaws_will.zip** | 2k | 03-06-03 | | **Gas Laws Notes** This is a gaslaws Chemistry program for the 89,92,92+, and V200. It displays the 7 laws for you, but doesn't help cheat by doing the work. |

| **gas_laws.zip** | 3k | 02-03-17 | | **Gas Laws** A group of functions that solve various gas law equations. |

| **gaslaws.zip** | 2k | 01-06-02 | | **Gas Laws** This is a gas law program that will help you solve gas law equations. It has the five main gas law equations built in. Just input x for the unknown variable. It is really simple to use and does not take up much space. |

| **gastab89.zip** | 750k | 06-11-18 | | **Real Gas Manager** Temperature, Entropy, Enthalpy, Internal Energy and fundamental constants of most common REAL gases with linear interpolation from a database. An advanced units system allows you to customise, save and reload the requested units. |

| **gates.zip** | 2k | 99-12-08 | | **Gates** An easy way to draw logical gate diagrams |

| **gauss.zip** | 1k | 03-09-17 | | **Gaussian Curve** It displays the standard deviation and the average from the data inputed, then it gives the graph.(u must be patient... it takes 2:15 min to finish the program) |

| **gcd.zip** | 4k | 00-03-16 | | **Gradient, Curl and Divergence** Important tools for vector calculus. 3 utilities to calculate Gradient, Curl and Divergence at the command line. It allows the user to specify the coordinate system (rectangular, cylindrical, or spherical) as well as the variables being used. Very flexable functions, especially if used programamatically. |

| **gear.zip** | 122k | 09-04-05 | | **Gear** (Originally submitted 2005-07-24) Spur, Helical, and Bevel gearset design based on AGMA standards. Through hardened, Nitrided, and 2.5% Chrome Steel as well as Nitralloy St-HB utilized. Face width initial estimator capability. Internal surface geometry factor (I) calculation. Capable of solving both design problems through iteration, and analysis problems (like power rating) through symbolic solution. |

| **gencode.zip** | 12k | 06-01-07 | | **Genetic code table** GenCode() is a program which presents standard genetic code (RNA codon table). In addition to standard presentation is possible to change a sequence of four bases (U,C,A,G) and a sequence of three bases in the codons. In this way is possible to get 144 different views on this table. A reverse codon table is also included. |

| **genetool.zip** | 2k | 98-11-21 | | **Gene Toolkit** A very essetial tool for biology. |

| **genie.zip** | 4k | 99-12-08 | | **The Genetics Genie v0.6 Beta** This is an indispensible tool for genetics problems. It includes a hybride crosser, dna converter, and a codon converter. |

| **getjdif.zip** | 1k | 04-11-11 | | **getjdif** Programa para resolver ecuaciones diferenciales por metodos numéricos |

| **getjecu.zip** | 1k | 04-11-11 | | **getjecu** Programa para resolver ecuaciones por metodos numéricos. NEWTON-RAPSON, REGULA FALSI, PUNTO FIJO, SECANTE, BESECCION by Gerardo T. |

| **getjtran.zip** | 1k | 04-11-11 | | **getjtran** Programa para el diseño de transformadores de voltage que calcula el area de la chapa, los bobinados y los otros parámetros. |

| **getjuis.zip** | 676k | 05-08-27 | | **getuis 6.0** [ES] Analisis de circuitos Electricos [EN] Analysis of Electronic Circuts |

| **getj.zip** | 676k | 05-10-29 | | **getjuis ( Circuitos Eléctricos)** NUEVA VERSIÓN. Programa para el análisis de circuitos electricos con cualquier tipo de exitación y con fuentes dependientes e independientes que calcula todas las tensiones nodales y equivalentes de thevenin, probado con más de 100 circuitos de los libros de Hayt y de Nilson. Recomendado para estudiantes de ingeniería. (Version Beta3) Ahora habilitada la función "serie o paralelo". By Gerardo E Terán Julio |

| **gphysicsch2_1dmotion.zip** | 2k | 01-12-22 | | **General Physics: Chapter 2** Summarizes one dimensional motion, with equations and definitions. |

| **gphysicsch3_2dmotion.zip** | 3k | 01-12-22 | | **General Physics: Chapter 3** Summarizes two dimensional motion, with equations and definitions. |

| **gphysicsch5_workenergy_txt.zip** | 2k | 01-12-22 | | **General Physics: Chapter 5 (txt)** a text file of equations for work, potential, kinetic, and mechanical energy |

| **grafcir.zip** | 8k | 03-09-08 | | **cirgraf_89/92+/v200** *(english) lets you draw and define the ramp, impulse and step functions of a signal, using the program after creating them from inside the program or from the y= editor *(espanol) le permite definir y graficar las funciones rampa paso e impulso de una senal despues de haberlas creado desde el programa o desde el editor de y= |

| **gravity.zip** | 11k | 03-08-26 | | **Physics Solver v1.2--Universal Gravitation** A physics program which will allow you to solve for any variable from 8 different equations relating to universal gravity. |

| **hfstab.zip** | 1k | 04-09-06 | | **S-Parameter Stability Calculation (german only)** let the program know the s-parameter of the circuit you have to investigate, it can tell you the stability circles in numbers and gfx. |

| **hidra.hidra.zip** | 1k | 04-06-19 | | **Hidraulica** Calculo de flujo gradualmente variado, alturas normales y criticas, momentas para las secciones rectangulares y trapeciales. (actualizacion) |

| **hidra.zip** | 1k | 03-07-17 | | **hidraulica** programa de hidraulica que calcula flujo variado por los metodos de j y f promedio y tambien por el metodo j promedio y variacion de energia, ademas calcula las alturas,energia y momenta normales y criticas para secciones trapeciales y rectangulares. |

| **hidrologiabasica.zip** | 287k | 09-06-07 | | **Hidrologia Basica®** Gracias por descargar Hidrologia Basica® El programa comprende los siguientes topicos: Evapotranspiracion: Hargreaves, Thorntwaite, Garcia B. y Turc. Ecuacion de Curva de Descarga: tabla de conversion LOG, ecuacion y representacion grafica. Ecuacion de Curva de Intensidad: tabla de conversion LOG, ecuacion y representacion grafica. Thank you for download Basic Hydrology® program that comprises the following topics: Evapotranspiration: Hargreaves, Thorntwaite, Garcia B. And Turc. Discharge Curve Equation: it includes LOG conversion table, equation and his graph. Intensity Curve Equation: it includes LOG conversion table, equation and his graph. |

| **his.zip** | 19k | 02-03-16 | | **HIS: Syllabus for diverse subjects - in Norwegian** Including subjects "Kjemi og Miljølære", "Mattematiske metoder 1", "Fysikk" |

| **hl_q_d.zip** | 140k | 07-03-22 | | **Losses in Pipe Flows / Pérdidas en Flujos por Tubería** ENGLISH: This program calculates head loss (hL), flow reason (Q) and average pipe diameter (D) using Swamee and Jain formulas (1976). TI-89, TI-92, TI-92 Plus, Voyage 200 and TI-89 Titanium compatible. ESPAÑOL: Este programa calcula pérdida de carga (hL), razón de flujo (Q) y diámetro medio de la tubería usando las fórmulas de Swamee y Jain (1976). Compatible con TI-89, TI-92, TI-92 Plus, Voyage 200 y TI-89 Titanium. |

| **hrdcross.zip** | 46k | 04-07-24 | | **HrdCross** Programa para el análisis hidráulico de un sistema de agua potable de red cerrada. Utiliza el método de Darcy Weisbach y Hazen Williams por distribucián de caudales o hardy cross. |

| **humidity.zip** | 1k | 00-07-14 | | **Wet Bulb Dry Bulb Humidity** Humidity from wet/dry bulb |

| **hwf.zip** | 6k | 11-12-05 | | **Hydrogen Wave Functions** Given three quantum numbers, this function will return the corresponding wave function for an electron in a hydrogen atom in spherical coordinates. Will not allow the user to input invalid quantum number combinations. |

| **hwz2.0.zip** | 1k | 06-09-17 | | **HWZ 2.0** Program to calculate radioactive half-lives. (German) |

| **hw.zip** | 4k | 00-02-23 | | **Hardy-Weinberg Equilibrium Calculator** =-for biology-= This program will calculate the population statistics for a trait using the Hardy-Weinberg equation: p²+2pq+q². |

| **idealgas.zip** | 1k | 00-07-14 | | **Ideal Gas Law Problem solver** PV=nRT---This program will solve for whatever variable you need. it can give the pressure in either Torr or atm. It can also give an answer in either K or C. |

| **idealg.zip** | 7k | 01-03-25 | | **IdealGas v0.1** his chemistry program will help to solve IdealGasLaw problems. |

| **imc.zip** | 2k | 02-05-20 | | **BMI (Body Mass Index) v. 1.0 ** This program will give you your BMI as well as useful information. |

| **inac.zip** | 108k | 14-01-30 | | **Celestial/Astronomical Navigation** Astnav89/INAC, Implementation of Navigational Algorithms in Computers. This is a celestial navigation program. Will take sextant readings and compute latitude and longitude. It also has a planetarium and great circle calculator, partial coastal navigation and more. |

| **inductio.zip** | 9k | 03-09-01 | | **Physics Solver v1.2--Electromagnetic Induction** A physics program which will allow you to solve for any variable from 8 different equations relating to electromagnetic induction. |

| **induct.zip** | 1k | 04-09-06 | | **Inductor Calculation (german only)** calculate the inductivity of a wire or an inductor |

| **induc.zip** | 2k | 99-06-30 | | **Induction v1.0** Phenomenal of induction. |

| **intensity.zip** | 1k | 06-02-17 | | **Sound Intensity** Intended to supplement other physics programs such as Physics Solver. Provides several important sound programs. |

| **ionsizes.zip** | 1k | 01-06-12 | | **Ion Sizes** A table of the common ions of main elements and their atomic radii |

| **ions.zip** | 1k | 00-06-15 | | **Ions** This is a program that tells which monatomic and polyatomic ions have which charge. |

| **jbsim2_89.zip** | 91k | 01-05-16 | | **JBSim v2.0** Simultit / pH calculator and plotter / Calculateur de pH et affichage de courbe de dosage |

| **jbsim.zip** | 1k | 01-03-27 | | **JBSIM** Calculateur de pH (chimie) / pH chemistry |

| **jectii89.zip** | 1k | 03-03-14 | | **Projectile II** Enter in data about a projectile such as the initial velocity, initial angle, and initial height and receive two pages of information about the projectile. This program solves for projectiles that either fall to the ground or that collide into a wall. |

| **jmoons89.zip** | 281k | 02-07-23 | | **JMoons** JMOONS is a TI-89 calculator activity which uses the calculus of parametric equations to model the moons of Jupiter as seen from earth, either through binoculars or an inverting telescope. After doing the math, students can use the TI-89 to identify moons during actual observations. |

| **jpromedioydife.zip** | 1k | 03-07-08 | | **flujo gradualmente variado** f.g.v |

| **karnaugh.zip** | 118k | 06-01-27 | | **Logical Suite v1.34** Do anything with Karnaugh table...interactive editing, simplifying, saving as function, reloading and circuit drawing!!! Supports '0', '1' and 'x' when doesn't matter (with 4 vars only) After editing it makes the synthesis of 4 bits synchronous counters with JK flip-flops and runs the counter to verify it is 'non-blocking' |

| **kinematicequationsv1.2.zip** | 3k | 01-12-22 | | **Physics: Kinematic Equations V. 1.2** Solves the four most basic kinematic equations of physics relating to motion, horizontal/or vertical. Version 1.2 fixes the clearpro problem. Thanks to ConcertMaster69 for notifying me of this. |

| **kinematics1.0.zip** | 1k | 04-12-11 | | **Kinematics 1.0** Solves kinematics equations for both linear and rotational but you need to think of the rotational variables in terms of linear variables, i.e. w=v |

| **kinmatic.zip** | 5k | 01-12-16 | | **kinmatic** This program solves kinematic equations, solves basic physics equations, and converts units. |

| **kmat.zip** | 95k | 99-12-25 | | **KMat - Package** Civil engineering: Generates Stiffness matrixes for bars in plain static systems with any inconsistencies. |

| **kmtheory89.zip** | 7k | 03-06-19 | | **Kinetic Molecular Theory (5pt)** This is just a few notes from chemistry class which may prove useful to you. |

| **ledcalc89.zip** | 1k | 02-08-02 | | **LED Calculator v1.0** This program is very useful for use in electronics. Enter the typical forward voltage, current drawn, and how much voltage you want to run it on, and you will find out the LED's resistance, as well as the resistor required to prevent burning out the LED. The program could also be used for relays, motors, incandescent lamps, etc. |

| **legendrechi.zip** | 1k | 06-09-26 | | **Legendre Chi Function** This computes Legendre Chi (v,z) where the v is sub of the Chi symbol. Accurate mainly between -1 and 1. |

| **length89.zip** | 1k | 02-04-11 | | **Ye Olde English Length Units** links, chains, furlongs, and leagues |

| **lens2.zip** | 4k | 02-06-01 | | **Thin Lenses** This program solves for image position and size for either a single thin lens or a combination of 2 thin lenses. It also draws ray diagrams to illustrate image position, size, and nature. The program can handle real and virtual images, real and virtual objects, and any lens spacing. |

| **lens.zip** | 8k | 01-03-14 | | **Lens** Programme d'optique de spé physique résolvant les système à 1 ou 2 lentilles et qui trace le schéma |

| **lexique.zip** | 5k | 01-04-04 | | **Lexique Physique Chimie** Lexique de Physique Chimie des termes de TermS |

| **lfgauss.zip** | 193k | 08-02-12 | | **LFGauss1.1** This name stands for Load Flow using Gauss-Seidel Method; its written in a TI-89 Titanium. The formulas used in it are based on this book: Power System Analysis by Hadi Saadat, The program is not written for just giving the final answer, it solves the problem step by step and is specially useful in tests because most of the time you are supposed to solve the problem only for a few steps and write down the procedure, however you can use it for reaching a final answer just by a few changes but when there are programs like POWERWORLD or DIgSILENT I think it wont be needed. Only those who have solved load flow problem with at least 3 bus and 4 iterations will understand how much useful this program can be however it is still very helpful for smaller networks. There is also a subprogram which calculates the Ybus matrix. The Ybus calculated after running this program can be used in other programs that I have written like Lfnewton or Lffdcpld. By inversing this matrix you calculate Zbus which is helpful especially when you are going to solve a short circuit problem. Required slack bus power, transferred power between buses, power loss on lines, current flowing through the lines and some other parameters of system are calculated too. |

| **lfnewton.zip** | 194k | 08-02-12 | | **LFNewton1.0** Load Flow using Newton Rophson Method The program leads you to final answer step by step & everything is shown on the screen. (very useful in tests) Before anything I suggest you to study the LFGauss.pdf file which is included in LFGauss().zip package. By the way this package is completely independent. As we will see through an example, learning how the program works is pretty easy. The same as LFGausse the formulas used in it are based on Power System Analysis by Hadi Saadat |

| **lglied.zip** | 1k | 04-09-06 | | **two-components-matching calc** calculates a matching circuit (L, both versions) |

| **linmot.zip** | 2k | 02-06-01 | | **Linear Motion** This program solves uniformly accelerated linear motion problems. The values of any 3 of the 5 quantities {x, vo, v, a, t} must be entered, then the program chooses the proper equations and solves for the remaining quantities. All solutions are copied to the home screen. |

| **liqvapequlibrium.zip** | 11k | 05-03-07 | | **Liq-Vap Equilibrium** Calculates properties of a binary compound mixture. Ideal for chemical or industrial Engeneering students |

| **logicdes.zip** | 49k | 07-04-26 | | **Logic Designer 2.1.1** A nice graphical editor and simulator for circuits of digital logic gates with on-calculator help and load/save. Supports gates (N)AND, (N)OR, XOR, EQUIV, NOT, constant 0 or 1, junction, switch, and light. Version 2.1.1 has minor fixes including one to splash screen centering on TI-92 Plus and Voyage 200. |

| **longlat.zip** | 1k | 03-03-23 | | **Long-Lat** How far is it from Alaska to Florida? Use this program to find out. Enter, longitude and latitude coordinates of any two places on the globe and find the distance between them across the surface of the earth. |

| **lorentzf.zip** | 1k | 09-11-03 | | **Lorentz Factor (Special Relativity Calculation)** enter the velocity as the only parameter, and find the Lorentz factor, which is useful in many special relativity calculations |

| **loss_cf.zip** | 67k | 06-12-30 | | **Loss of Pressure Coefficient v 1.01** Returns the concentrate loss of pressure coefficient for the most common elements of an hydraulic circuit: valves, elbows, T connections, section increase and reductions, tank input and output, 90° curves and so on. |

| **lsa122ams208.zip** | 45k | 03-05-20 | | **LSA 2000 version 1.2.2 for AMS 2.08 (or greater)** Laser Safety Advisor (LSA) 2000 performs a laser hazard analysis using methods that comply with ANSI Z136.1-2000. This program more closely reproduces the numeric results that would be generated by a manual laser hazard analysis, using exactly the methods that are specified in the ANSI standard. This updated version of the package contains improvements to the analytic engine. The program is now much faster than the original release, because the current version bypasses the .nSolve. function when it generates numeric solutions for implicit equations. This version is also better at screening out nonsensical input combinations. |

| **machcalc.zip** | 1k | 99-12-25 | | **Machinist Calculator v1.5** An update of v1.0, added bolt hole circles in this version. |

| **machinist_chord_calc.zip** | 3k | 03-03-10 | | **Machinist Chord Calculator** This program will take any two knowns and give out the arc length, segment height,chord length, and much more. A must for any Machinist and Math student. |

| **machinistchordcalc.zip** | 3k | 03-03-10 | | **Chord** This Chord Calculator has just about everything you will ever need to know. |

| **mag_f_t.zip** | 104k | 07-12-06 | | **Magnetic Force and Torque** This program calculates forces and torques exerted by a uniform magnetic field. It finds the force exerted on either a moving charge or a current carrying conductor located in a magnetic field and the torque exerted on a current loop or a magnetic dipole by a magnetic field. It works for rectangular or circular loops in any orientation or for a loop of arbitrary shape lying in the x-y plane. Either numerical or symbolic solutions can be found. Several examples are included. |

| **magnetic.zip** | 7k | 03-09-01 | | **Physics Solver v1.2--Magnetic Fields** A physics program which will allow you to solve for any variable from 2 different equations relating to magnetic fields. |

| **magnitude.zip** | 10k | 02-02-19 | | **Magnitude** A BASIC program that converts between different stellar magnitudes for viewing stars from different points in space. |

| **main.apbio.89p** | 1k | 03-03-09 | | **Hardy-Weinberg equation** This amazing program allows the user to begin from any variable while the calculator solves for all of the remaining variables including the equilbrium. |

| **main.chem.zip** | 1k | 12-07-09 | | **Chemistry** Trivial chemistry concepts and applications. |

| **main.elec.zip** | 1k | 12-07-09 | | **Electrophysics** Trivial electrophysics concepts, equations, and applications. |

| **marco2d.zip** | 13k | 03-05-18 | | **Marco2d v1.0** Programa de analisis estructural para resolver marcos. Calcula reacciones y desplazamientos nodales. Utiliza el metodo de rigideces. |

| **masscalc.zip** | 8k | 04-05-25 | | **Molar Mass Calculator** This is a small molar mass calculator for the Ti-89. It's about 4 Kb and is easy to use. It finds answers to three or four decimal places. Now it uses a binary search so it runs a lot faster. |

| **masscen.zip** | 2k | 99-03-29 | | **Center of Mass v1.01** ChaoticSofts Center of Mass v1.01 |

| **massmass.zip** | 1k | 04-03-08 | | **Mass-Mass calculator** For chemistry students to easily calculate an unknown mass from a mass, molar mass, and mole ratio. |

| **mass.zip** | 5k | 04-02-14 | | **Atomic Mass v2.0** This function returns the atomic mass of any of the first 110 elements on the periodic table, or of a compound. To get the mass of gold, for instance, type mass("Au"). To find the molar mass of sulfuric acid (H_{2}SO_{4}), type mass("H2SO4"). You can also use parentheses, if needed, as in Ba(NO_{3})_{2}. The symbol must have a capital first letter and lowercase second letter. Anything not following this pattern will return odd results. Enjoy! |

| **match.zip** | 1k | 04-09-06 | | **impedance matching calculation** "lglied" was not enough, here is a program knowing all the standard matching stuff |

| **matemati.zip** | 1257k | 07-03-31 | | **Matemati, Math Suite -Herramientas Matemáticas-** [ENGLISH] Most of the MATEMATI functions are graphical implementations of mathematical functions included in the calculator. This facilitates to the student whos beginning to use the calc or is in initial semesters, basic mathematical tools for all engineering. MATEMATI also counts on routines of regression for statistic, a program for vectors and a program to solve differential equations of first and second order. The contents are: 1 Numbers, 2 Functions, 3 Vectors, 4 Statistic [ESPAÑOL] La mayoría de las funciones de MATEMATI son implementaciones gráficas de funciones matemáticas incluidas en la calculadora. Esto con el propósito de facilitar al estudiante que empieza a usar la calculadora o se encuentra en semestres iniciales, herramientas matemáticas básicas para todas las ingenierías. MATEMATI también cuenta con rutinas de regresión para estadística, un programa para vectores y un programa para resolver ecuaciones diferenciales de primer y segundo orden. Los contenidos son: 1 Números, 2 Funciones, , 3 Vectores, 4 Estadística |

| **mattbox89.zip** | 16k | 04-07-15 | | **Material Science Toolbox** Its a packet of functions for an advanced materials analysis through examining tensions and deformations. |

| **matter.zip** | 9k | 03-09-01 | | **Physics Solver v1.2--States of Matter** A physics program which will allow you to solve for any variable from 6 different equations relating to states of matter. |

| **mecanica.zip** | 1k | 03-07-08 | | **sist. particulas** Sistema de particulas |

| **megmod.zip** | 1k | 04-09-06 | | **old filter calculation for short wave** I read an old book about short wave stuff. They used the ?1MHz model? for filters. Here it is! |

| **mess.zip** | 18k | 02-05-14 | | **MinimizE StateS 1.00** This program minimizes incompletely or completely specified finite state machines (FSM) with the algorithm of Paull and Unger. |

| **metric_45.zip** | 1k | 07-12-23 | | **Metric** Adds unit conversion capabilities for standard SI, and also SI for for dealing with bits. And also IEC standard prefixes which are for bits also... |

| **metric89.zip** | 2k | 03-03-09 | | **Metric** Metric is a program for the TI-89 where you can convert from one metric prefix into another. For example, you could convert milligrams into dekagrams. |

| **metricadjust.zip** | 2k | 07-03-31 | | **Metric Adjust** This program converts really big numbers into shorter numbers expressed with metric prefixes. Example: 8,000,000 becomes 8_mega. |

| **metric.zip** | 1k | 03-03-25 | | **Metric** Teach your calc all thouse pesky metric prefixes, use them in conversions and calculations. |

| **mirrors.zip** | 7k | 03-09-01 | | **Physics Solver v1.2--Mirrors & Lenses** A physics program which will allow you to solve for any variable from 4 different equations relating to mirrors and lenses. |

| **miscelan.zip** | 8k | 03-09-01 | | **Physics Solver v1.2--Miscellaneous** A physics program which will allow you to solve for any variable from 4 different equations relating to miscellaneous topics. |

| **mitools.zip** | 1k | 03-03-08 | | **Mile Tools** There are three programs that can find miles, mph, and hours, when you have the correct information. This program automaticly converts years, days, hours, and minutes. |

| **mmass.zip** | 2k | 06-02-07 | | **Molar Mass** Finds the molar or gram mass of any compound. |

| **mmpkg.zip** | 8k | 10-10-25 | | **Mathematical Physics Functions** This a collection of useful functions I wrote for a mathematical physics course. Included functions, most of which allow for any dimension in the arguments: curl, directional derivative, divergence, exact normalized eigenvalues and eigenvectors, error function, complimentary error function, imaginary error function, gradient, inverse curl, inverse divergence, inverse gradient, jacobian transformation, laplace transformation, magnitude, beta function, standard normal distribution function, and a gamma function that has exact results for n/2 and can handle negative numbers. |

| **mobile89.zip** | 9k | 00-02-13 | | **Mobile89** Calculates the tension and placement of a string that is hanging a mobile. |

| **mohr_53.zip** | 6k | 01-05-08 | | **Mohr v1.00** MOHR est un programme pour Ti89/Ti92/Ti92Plus, écrit en Ti-Basic. Il permet de calculer les contraintes et de tracer le cercle de Mohr des contraintes mais aussi de calculer les déformations et de tracer le cercle de Mohr des déformations. Il sera utile à ceux qui étudient la mécanique et la résistance des matériaux entre autres. |

| **mohrcirc89.zip** | 51k | 04-04-01 | | **Mohr** Allows an advanced analysis of plane tension states with drawings and numeric data. Little bug fixed. |

| **mohr.zip** | 5k | 03-06-18 | | **circulo de mohr (mohr circle)** Este programa te facilita encontrar los esfuerzos maximos en un estado de esfuerzo de dos dimensiones. Este programa es util para carreras donde se vea algo de diseño mecanico ó en ing civil. |

| **molality.zip** | 1k | 00-05-31 | | **Molality** A program to compute the molality of a solution. |

| **molarity.zip** | 1k | 00-05-31 | | **Molarity** A program to compute the molarity of a solution. |

| **molar.zip** | 1k | 01-02-20 | | **Molarity Calculator** This program calculates the molarity of a solution when the amount in L, substance, and solute in g is given. This automatically calulates the molar mass of the substance you type in so no need to look at a periodic table!!! |

| **molgeo.zip** | 1k | 01-06-12 | | **Molecule Geometry** A table of the geometry and bond angles of different types of compounds.. |

| **molmass.zip** | 5k | 99-12-08 | | **Molecular Mass v1.0** Automatically calculates the relative mass of a molecule. |

| **molmodel.zip** | 11k | 01-02-22 | | **MolModel3D (graphs and objects)** Models all forms of 3D graphs and objects, from molecules to polar graphs, and from ball and stick to stereoscopic images. Eight different styles give you flexibility in viewing your data, and preferences keep settings handy. Included is a program that generates cartesian, polar, parametric curves, and parametric surface graphs in 3D. |

| **momentum.zip** | 9k | 03-09-01 | | **Physics Solver v1.2--Momentum** A physics program which will allow you to solve for any variable from 6 different equations relating to momentum. |

| **moody.zip** | 1k | 00-07-26 | | **Moody Diagram** Used in the Moody Diagram |

| **moonecl.zip** | 2k | 03-03-11 | | **Lunar Eclipses** Compute, for any given year and month, the times of the possible lunar eclipse. |

| **moonfrac.zip** | 1k | 03-03-15 | | **Illuminated fraction of the Moon's disk** Compute, for a given instant, the illuminated fraction of the Moon's disk. |

| **moonphas.zip** | 2k | 03-03-10 | | **Phases of the Moon** The program computes, for a given year and month, the istant of a selected moon's phase. |

| **moremohr.zip** | 1k | 08-12-01 | | **Mohr's Circle 89** This is arguably the best Mohr's Circle program for the TI89. It shows all work, calculates all stresses and angles, and even draws the circle for you! It helped me effortlessly ace my SoM quizzes and exam and I am sure you will find it just as helpful! |

| **mos.zip** | 1k | 04-09-06 | | **MOSFET calculation** the numerical solver for mosfet calculation in design of integrated circuits |

| **motion2d.zip** | 9k | 03-09-01 | | **Physics Solver v1.2--Motion 2D** A physics program which will allow you to solve for any variable from 7 different equations relating to motion in two dimensions. |

| **motion3d.zip** | 41k | 08-03-05 | | **3 Dimensional Motion with Time Dependent Acceleration** This program analyzes 1, 2, or 3 dimensional motion with either time dependent or constant acceleration. For a 3d case, the values of any 10 of the 16 quantities { xo, yo, zo, vox, voy, voz, ax, ay, az, x, y, z, vx, vy, vz, t } must be entered, then the program solves for the remaining 6 unknown quantities from the list. Either position, velocity, or acceleration can be entered as a function of time for each of the 3 dimensions. In time dependent cases, the values of the unknowns as well as expressions for them as functions of time are given. Several examples are included. |

| **motion89.zip** | 2k | 02-11-28 | | **Motion Solver 89** Enter the values you know from the projectile or Linear motion equations, (an 'x' for the values you don't know), and it will solve for the unknown variables...(the equation should be of the form Xf = Xi + Vx * T + 1/2 * Ax * T^2 and/or Yf = Yi + Vy * T + 1/2 * Ay * T^2) (NOTE: SEE SCREENSHOT FOR SAMPLE OF INPUT AND OUTPUT.......THIS IS FOR AMS 2.08....IF YOU HAVE LESS THAN 2.08...YOU HAVE TO EDIT A FEW "Request" FUNCTIONS BY TAKING OUT THE ",0" AT THE END) |

| **motion.zip** | 1k | 99-10-27 | | **Motion Solver v1.1** Enter 3: vi, vf, t, d, a & it gives you the rest. |

| **motor89.zip** | 1k | 03-01-01 | | **Ultimate Motor Helper v2.0** This program is very useful when working with AC induction or DC motors. Ultimate Motor Helper will provide you with the synchronous RPM, breakdown torque, power factor, the value of the starting capacitor required for a capacitor start motor, back EMF, and flux per pole. (Some values only work with specific motors.) All of the information you need for calculations should be on the name plate, except for the number of poles. This number can be determined by a close examination of the stator core. Enjoy! (Note: This program has the distinction of being the first ever to be released on all 12 TI graphing calculator platforms. Yay!) |

| **mrcpcvuh.zip** | 26k | 07-02-18 | | **Thermodynamic Table A.2** ENGLISH: This program shows the molar mass, particular gas constant and calculates molar heats and changes in internal energy and enthalpy for 21 common substances. TI-89, TI-92 Plus, Voyage 200 and TI-89 Titanium compatible. ESPAÑOL: Este programa muestra la masa molar, constante particular de gas y calcula calores molares y cambios en energía interna y entalpía para 21 sustancias comunes. Compatible con TI-89, TI-92 Plus, Voyage 200 y TI-89 Titanium. |

| **mrypropc.zip** | 32k | 07-02-13 | | **Thermodynamic Table A.1** ENGLISH: This program shows the molar mass, constant of gas and properties of the critical point of 34 substances. TI-89, TI-92 Plus, Voyage 200 and TI-89 Titanium compatible. ESPAÑOL: Este programa muestra la masa molar, constante de gas y propiedades del punto crítico de 34 sustancias. Compatible con TI-89, TI-92 Plus, Voyage 200 y TI-89 Titanium. |

| **mw.zip** | 2k | 99-12-08 | | **Molar Mass v1.0 Beta** Better than any molar mass calculator you have ever used! Actually parses a formula entered naturally instead of asking annoying questions. A must for chemistry homework. |

| **ne555.zip** | 1k | 04-09-06 | | **555-Timer calc** calculates which elements to uses for desired frequency |

| **nea.zip** | 2k | 04-05-18 | | **New Encryption Algorithm (NEA)** This is an implimentation of an algorithm that i invented, and am testing it with the TI-89 to see if it can be broken. It does not do much but encrypt a string. |

| **newt2nd.zip** | 25k | 06-10-27 | | **Newton's 2nd Law of Motion** This program solves problems involving any number of forces (in a plane) applied to a particle. It works for either dynamic or static situations. Either numerical or symbolic solutions can be found. Any 2 quantities (other than angles) can be solved for. Connected objects can be treated by applying the program to each object separately to set up a system of simultaneous equations. This update makes it easier to treat connected objects. A worked example is included in the text file. All solutions are copied to the home screen. |

| **newt2sys.zip** | 83k | 06-12-19 | | **Newton's 2nd Law Applied to Systems of Objects** This update fixes a problem in the editing procedure. This program solves problems involving any number of forces (in a plane) applied to an object or a system of objects and pulleys. Results include the effects of the mass, radius and inertia of pulleys. Either numerical or symbolic solutions can be found. Equations are displayed as the program runs and are also copied to the home screen. When the number of unknowns exceeds the number of equations, you can choose which to solve for: the rest are treated as parameters. All solutions are copied to the home screen. Two worked examples are included. |

| **newtonlaws.zip** | 1k | 03-04-25 | | **Newtons Laws** Here is a very simple program that tells you each of newtons laws. |

| **newtons.zip** | 2k | 03-03-09 | | **Newton's Method** Newtmeth is a program that uses Newtons Method to approximate a zero for a polynomial function. |

| **nom.zip** | 8k | 04-01-31 | | **NUMERIC METHOD by Dvash Amos BGU** Numeric method - step by step programs include help file -based on numeric method course in Ben Gurion University Israel - the Department of Mechanical Engineering. step by step method: squer,interpolation,secant,b-section,regular falsi,rafson,gauss,lagrange,r-k2/r-k4/r-k eq. solver,linear comb. & more this program needs os2.08 or higher!!!! |

| **n_slits.zip** | 1k | 02-07-15 | | **Multiple Slit Interference Patterns** This program graphs light intensity versus angular position in interference patterns from multiple slit arrangements. The patterns include both interference and diffraction effects. The number of slits, slit width, slit spacing, wavelength, and the number of interference orders displayed can all be varied. |

| **ochemhybridization.zip** | 2k | 01-12-16 | | **Organic Chemistry: Hybridization** Deals with sp3, sp2, and sp orbitals of alkanes, alkenes, and alkynes. Gives a nice description of how the orbitals are hybridized, and descriptions of the hybridized orbitals such as bond angles, bonds, etc. |

| **ode_solver.zip** | 1k | 02-09-27 | | **ODE Solver** This program reconstructs the path of a particle using some initial data by numerically solving systems of second order ODEs |

| **ohmjoule.zip** | 1k | 03-07-24 | | **Ley de ohm & joule** Este programa calcula los valores de los parametros que te hagan falta ya sea en la LEY DE OHM o en la LEY DE JOULE |

| **ohmslaw.zip** | 4k | 05-06-25 | | **Ohm's Law** This little program helps you with Ohm's Law |

| **options.zip** | 2k | 00-07-14 | | **Option Pricing** Option Pricing with Black-Scholes |

| **orbit.zip** | 1k | 01-01-22 | | **Orbit Solver 89** A program that will calculat Period, Velocities, and Potential and Kinetic Energies of Circular and Eliptical orbits |

| **organicchemistrycahningoldprelog.zip** | 1k | 01-12-22 | | **Organic Chemistry: Cahn-Ingold-Prelog ** SystemTable of some commonly encountered groups ranked in the Cahn-Ingold-Prelog System |

| **organicchemistrych1_4_dictionary.zip** | 5k | 01-12-22 | | **Organic Chemistry: Dictionary Vol 1** IDictionary of terms for chapters 1 through 4 |

| **organicchemistrych1_bondrv.zip** | 3k | 01-12-22 | | **Organic Chemistry: Chapter 1** a review of bonding for organic chemistry |

| **organicchemistrych2alkane.zip** | 2k | 01-12-22 | | **Organic Chemistry: Chapter 2** introduction to alkanes |

| **organicchemistrych5_elimination.zip** | 3k | 01-12-22 | | **Organic Chemistry: Chapter 5** Deals with elimination reactions of alkenes, the E1/E2 reaction mechanisms, Zaitsev's Rule, and the E/Z nomenclature system |

| **organicchemistry_heatofhydrogenation.zi** | 1k | 01-12-22 | | **Organic Chemistry: Heats of Hydrogenation** Table of heats of hydrogenations for some common alkenes |

| **organicchemistryhybridization.zip** | 2k | 01-12-22 | | **Organic Chemistry: Hybridization** Deals with sp3, sp2, and sp orbitals of alkanes, alkenes, and alkynes. Gives a nice description of how the orbitals are hybridized, and descriptions of the hybridized orbitals such as bond angles, bonds, etc. |

| **organicchemistryirspectroscopy.zip** | 1k | 01-12-22 | | **Organic Chemistry: IR Spectroscopy** The most important spectra encountered with a description and wave numbers for use in infrared spectroscopy |

| **organicchemistryrateofhalogenation.zip** | 1k | 01-12-22 | | **Organic Chemistry: Rates of Halogenation** HalogenationTable of the rate of halogenation for the halogens in primary, secondary, and tertiary alcohols |

| **organiq.zip** | 11k | 99-04-15 | | **Organiq** Chemical program written in French. |

| **orgcomn.zip** | 1k | 01-06-12 | | **Naming Organic Compounds** sic methods for naming general organic compounds. |

| **oxrules.zip** | 1k | 01-01-04 | | **Oxydation Rules** This program is a quick reference for the oxydation rules for ionic and covalent compounds. This is a very useful thing for chemistry students, and I highly recommend downloading it. |

| **param.zip** | 1k | 04-09-06 | | **S-, Y-, Z-Parameter convertion** you?re sitting on a matrix of s-parameters and you cannot find the formulas to recalc the z-params? Here is one solution. |

| **partrte.zip** | 1k | 05-09-24 | | **Percent Labor Force** This program figures the percent of labor force participation. This is beta version. |

| **pa.zip** | 3k | 04-09-06 | | **personal address** The TI89 is still on your desk at work. Why not also your address database. I wrote one at a shit weather Saturday: |

| **percentcomposition.zip** | 2k | 06-01-13 | | **Percent Composition** This is a relatively complex program that allows you to enter up to five elements in a formula and the whole number ratio of each one in order to determine the percent compostion (by mass) of each element by using a matrix that contains the mass of all the elements. It also shows you the mol weight of each element and the total mol weight, making it very easy to show your work. |

| **period2.zip** | 4k | 99-02-28 | | **Periodic Table v2.0** Best graphic for periodic table, cursor moving around for indication |

| **period89.zip** | 3k | 00-02-18 | | **Periodic Table v89.0** This is a must-have for all Chemistry students! This contains the full Periodic Table of the Elements. Everything from Hydrogen to Dubnium, including electron arrangement, atomic mass, symbol, and oxidation numbers! Chemistry has never been this easy! |

| **periodic2.zip** | 3k | 00-01-15 | | **Periodic Table** Program contains a Periodic Table. You can search about all basic information on all elements up to Mt. Try it out, I think it's the best basic periodic. |

| **periodic3.zip** | 23k | 05-06-12 | | **Periodic** A periodic table with many options (calculation of the mass molar for instance). |

| **periodic89_fr.zip** | 4k | 00-08-12 | | **Tableau Périodique (French)** Tableau périodique en français (N°, densité, masse molaire, électronégativité, structure électronique, état d'oxydation) |

| **periodic.zip** | 15k | 00-08-12 | | **Periodic** A chemistry program to find information on elements and grams per mol of a compound. |

| **perio.zip** | 21k | 00-03-07 | | **Peridioc Table v1.51** A periodic table with research and atomic configuration. Available in English, French and Spannish (NEW !!!) |

| **petri89.zip** | 43k | 00-05-12 | | **Petri89 v1.21** Tools for Petri net : Tinvariants, Pinvariants, Marking tree... |

| **ph2.zip** | 1k | 01-06-01 | | **pH v1.00** A chemistry program to calculate quickly a pH |

| **ph3.zip** | 3k | 01-06-12 | | **pH v1.15** Finding the pH, pOH, [H3O+], and [OH-]. Version 1.15 does some display fixes that should make running much smoother. |

| **phfinder89.zip** | 3k | 03-05-18 | | **Acid/Base Mathematics** This, with just a single input, can tell you the pH, pOH, and 2 other things. It's useful and very fast, having been tested on the 73,82-v200. |

| **phsolver2.zip** | 9k | 02-11-20 | | **pH Solver** Know how to calculate pH? You do now! Watch the animation for help. This program is very handy, very fast chemistry tool for solving for the pH, pOH, [H], or [OH]. Given one of these values, the program calculates the rest and displays them with and indication that the substance is "acidic", "neutral", or "basic" |

| **phsolver.zip** | 229k | 03-09-08 | | **Physics Solver v1.2** Imagine being able to not have to pay attention in your Physics class ever again!! This program will let you solve 140 physics equations for **ANY VARIABLE** within each equation. Not only can you solve for whatever you want, but this program is easier to use than than the calculator's own Operating System. It also features the ability to only load certain subject on your calculator when you need them since they are divided up by subjects (24 programs total,) this will save you a lot of space! Finally if you and/or your friends struggle in Physics you need to get these programs, they exist for nearly every programmable TI Graping calculator, so check em out and start getting better grades today! |

| **phsolve.zip** | 9k | 02-11-08 | | **pH Solver** Know how to calculate pH? You do now! Watch the animation for help. This program is very handy, very fast chemistry tool for solving for the pH, pOH, [H], or [OH]. Given one of these values, the program calculates the rest and displays them with and indication that the substance is "acidic", "neutral", or "basic" |

| **phys89.zip** | 1k | 00-03-29 | | **AP Physics B Formulas** Useful formulas and units for the ap phys b test |

| **physanal.zip** | 17k | 05-11-19 | | **Physical analogies** Physanal() is a program which presents symbols, units and equations for 12 general quantities in different physical systems. From these presentations some general analogies between these systems and their quantities can be found. There are seven preselected systems: electric, magnetic, rotation, linear motion, surface motion, hydraulic/accoustic and thermal system. Different units for current and for potential can be entered and in this way other looks on these systems can be selected. A comprehensive table of physical symbols, quantities and units is included. |

| **physchemsolver.zip** | 1k | 05-10-06 | | **Physics and Chemistry Equation Solver** This is a relatively simple program that allows you to solve for the different variables with the units of your choice in three equations: Wavelength = Speed of Light / Frequency Energy = Planck's Constant * Frequency Energy = Planck's Constant * (Speed of Light / Wavelength) Check out the screenshots and the ReadMe (please). |

| **physcipck1.zip** | 1k | 04-01-28 | | **Physical Science Series - Physical Science Pack 1** A group of 2 functions and a program that are useful for Physical Science and Physics classes. Read the documentation for more. |

| **physequ89.zip** | 9k | 10-12-01 | | **Physics Equations 89/92/V200 v1.0** Physics Equations is a program that has physics equations pre- programmed so that all you have to do is select the equation, select the variable to solve for, and plug in your knowns. It is recommended that you run this program in Archive so that if your RAM is cleared, you still keep this program. This is my first TI-89 program, so feedback is welcome! This program has been verified to work on the TI-89/Titanium, TI-92/+, and Voyage 200. There is also a version for TI-83/+ and 84+/SE. |

| **physequ.zip** | 11k | 03-09-05 | | **Physics Equations** A listing of all the Physics Equations you will ever need during the course in High School. It has accurate information, and a good layout so that you can find what equation you need. Very helpful! |

| **physform.zip** | 17k | 00-01-12 | | **Physics Formulae 89** A collection of different physics formulas by request. |

| **physics2electricityprogra.zip** | 866k | 07-12-23 | | **Physics 2 Electricity programs** Version 2.0 adds more features, wastes more memory on your calculator, adds no bug fixes as their was no bugs, and hopefully adds no new bugs. Four programs for solving similar, ridiculous, pointless, abusive, "filler material", "wastes of time", types of physics 2 problems dealing with point charges. eField() Calculates electric field (N/C)|(v/m) at some point. fField() Calculates force (newtons) at some point. vEpot() Calculates (Volts)electric potential at some point. jEpotEng() Calculates (Joules)Electric potential energy of a system. |

| **physics89.zip** | 3k | 02-04-12 | | **Physics** This is a very usful group of programs. It was put together to help high school kids but it might even be helpful when your in collage |

| **physicsch2_1dmotion.zip** | 2k | 01-12-16 | | **Chapter 2: 1 D Motion** Summarizes one dimensional motion, with equations and definitions.. |

| **physicsconstants.zip** | 10k | 11-03-17 | | **Physics Constants** Contains a wide variety of universal constants for astronomers (mass, radius, and distance from the sun of all 9 planets and the sun. view the ReadMe for information on how to use it. |

| **physicsc.zip** | 1k | 99-05-19 | | **Physics C: Mechanics Notecard v1.0** Translation of Physics C notecard for TI-85. |

| **physicseqns.zip** | 4k | 03-03-09 | | **Physics Equations 89** A text file full of all of the physics equations necessary for a high school level physics class. When new a variable is introduced, its proper name and units are given. The file also includes paragraphs describing various physical phenomena. It corresponds Glencoe Physics copyright 1999 ISBN 0-02-825473-2. |

| **physicsolver.zip** | 80k | 06-11-18 | | **Physics Pack** Includes 138 equations subdivided in 24 groups (Velocity, Acceleration, Forces, Vectors, Motion 2D, Universal Gravity, Momentum, Power & Work, Kinetic Energy, Thermal Energy, States of Matter, Waves, Reflection, Mirror & Lenses, Light Diffraction, Electric Fields, Electric Currents, Circuits, Magnetic Fields, Induction, E. M. Fields, Quantum Theory, The Atom and a Miscellaneous) that can be used with Equation Solver and Manager (eqman.zip, available in my page), all that in 6 KB! |

| **physics.physform.zip** | 2k | 03-11-19 | | **physform** This is a physics solver, suitable for any AP or non physics class. It will be updated as I continue through the course, but as of now is capable of kinematics, f=ma, circular motion, and gravitational attraction. The program has been pretty well tested, but if you find a flaw, let me know about it. My email is swailsey2004@msn.com. I hope this program comes in handy, but a tip is to use it to check your answers rather than become dependant on it as a source of them. (and I take no responsibility for any problems that this may have, although with such simple syntax I don't see that happening, but just to be safe) |

| **physicsset.zip** | 9k | 12-03-07 | | **Physics Set v3.0** This is a set of physics formula solvers, with two animators. It is very useful for the average Honors Physics student. Now incorporates a new GUI for two programs, and increases efficiency. |

| **physics.zip** | 1k | 98-10-23 | | **Physics-89** Solves for freefall, kinematics, and centripital force. |

| **physic.zip** | 1k | 98-11-21 | | **Physic Solver v0.85** |

| **phys.zip** | 1k | 99-06-09 | | **AP Physics B Formulas** Formulas for the AP Physics B test. |

| **phyzics.zip** | 9k | 00-08-28 | | **Phyzics** New and improved! This new version of Phyzics can hold up to 150 equations, with the ability to type in an equation to solve only once or to save for later use! Functionality is much improved and the interface is easier. Newest release: includes minor changes to allow for better storing and accessing capabilities for user-defined equations. This version: big bug fix over v1.6 >>AND a smaller changer over v1.7. I apologize for having to rerelease so soon.<< Nothing else changed. Get this version to be able to use any of the newly added equations |

| **ph.zip** | 2k | 00-04-19 | | **Titration** This program calculates the titration of strong and weak acids and bases. It calculates midpoints, equivalence points, and the pH of the system after an amount of titrant is inputed. |

| **pions.zip** | 1k | 01-01-04 | | **PIons** This program is a database for all polyatomic ions. No chemistry student should be without this. |

| **planemo.zip** | 54k | 08-02-28 | | **Motion in a Plane with Constant Acceleration** This is a generalization of my program, Projctle(), to include acceleration due to forces other than gravity. For example, it can be used for a charged particle moving in a uniform electric field. The values of any 7 of the 11 quantities, {components of acceleration, initial position coordinates, initial speed and direction, final position coordinates, final speed and direction, and time} must be entered, then the program solves for the remaining 4 unknown quantities. Several examples are included. |

| **planet89.zip** | 7k | 00-03-29 | | **Planet 89** Calculates positions of Sun, Moon and planets of our Solar system |

| **potnt_3d.zip** | 1k | 03-03-09 | | **Electric Potential Due to Point Charges (3 Dimensions)** This program calculates the electric potential at any point P due to any number of point charges. The charges, their coordinates, and the coordinates of the point P must be entered. A running sum is displayed after each charge is entered. The final result is copied to the home screen. |

| **potntial.zip** | 1k | 03-03-09 | | **Electric Potential Due to Point Charges in a Plane** This program calculates the electric potential at any point P in a plane due to any number of point charges lying in the plane. The charges, their coordinates, and the coordinates of the point P must be entered. A running sum is displayed after each charge is entered. The final result is copied to the home screen. |

| **prefixv085.zip** | 1k | 01-12-16 | | **SI Prefix Converter v0.85** This simple, compact BASIC function will convert between SI prefixes. Easily change 623 mm to km, without having to remember the conversion scales! All prefixes built in! Bug fixed from v0.8 . |

| **prefix.zip** | 1k | 01-12-16 | | **SI Prefix Converter v0.8** This simple, compact BASIC function will convert between SI prefixes. Easily change 623 mm to km, without having to remember the conversion scales! All prefixes built in! |

| **probio89.zip** | 6k | 03-03-10 | | **PROBIO 89** Probio 89 is a port of PROBIO, originally by Glen Lee (providence4ver@hotmail.com) and is intended as a reviewer. Jeremiah, Glen, or Prokul Interactive is not responsible for anything that Probio does to you. If it destroys your calc, ruins your life, makes you fail a test, or induces thoughts of suicide, you can in no way hold any of the afore mentioned people and/or organizations responsible. Of course, if you run into a problem, we will gladly help you in any way possible. (c) 2003 Prokul Interactive |

| **problnce.zip** | 6k | 00-10-20 | | **ProBalance II - Final Release** This very useful program enables you to balance chemical equations - and it's incredibly fast in only 5 kb! Just try it... |

| **programs.progma.zip** | 27k | 04-01-28 | | **Physical Science Series - Mechanical Advantage Solver** A program used to solve for the MA of all simple machines. Try it out. |

| **programs.spec_ht.zip** | 57k | 04-02-17 | | **Physical Science Series - Specific Heat Solver** This program utilizes a simple technique that solves for the answer. Just input the aspects necessary and you will get the result. To learn more read documentation. |

| **projctle.zip** | 8k | 05-04-20 | | **Projectile Motion** This update of projctle() allows entry of either initial or final values, or any combination of initial and final values, and also removes the restriction that the projectile start at (0,0). The previous version of projctle() required initial values as input and calculated final values. Projctle() solves most types of projectile motion problems, assuming no resistive forces. Choose from 3 different systems of units. The values of any 5 of the 9 quantities { xo, yo, vo, áo, x, y, v, á, t } must be entered, then the program solves for the remaining 4 unknown quantities from the list. Solutions are copied to the home screen. |

| **projdrag.zip** | 9k | 03-12-16 | | **Projectile Motion in a Resistive Medium** This program analyzes projectile motion in a resistive medium (R=-bv). The program solves most types of projectile motion problems. Choose from 3 different systems of units. The values of any 3 of the 4 quantities {vo, qo, x, y} must be entered, as well as a resistance parameter, then the program solves for the remaining unknown quantities from the list {vo, qo, x, y, t, v, vx, vy, q} . The solutions are copied to the home screen. The path of the projectile and the path in vacuum are graphed for comparison. After exiting the program, the graphs can be examined and input values can be changed. |

| **protect.zip** | 1k | 02-10-27 | | **Protect** Finds almost anything about a projectile. Then, it can find where on a building it will hit. Displays a rough graph, too! Check out your graph mode to see the real graph. |

| **prp.zip** | 4k | 99-12-25 | | **PRp v1.1** PRp is a program to test the Positive Real property of rational functions. It can be useful to students who attend advanced courses in electric circuits. |

| **psa.d2w.zip** | 1k | 10-02-06 | | **d2w 1.2** Takes delta impedances/admittances and generates Wye impedances/admittances. (D2Y) (Used when converting 3 phase loads) |

| **psa.lfdcpld.zip** | 1k | 09-01-09 | | **lfdcpld 1.0 beta** Decoupled load flow (Some of you reported that this program does not work correctly in special cases; so be careful when using it) Please report program errors to me, I'll need full information about the question to understand which part is wrong. (You can take a photo of question and send it to my email) Thanks in advance. |

| **psa.lffdcpld.zip** | 1k | 09-01-09 | | **lffdcpld 1.0** Fast Decoupled load flow lfdcpld is a load flow program using decoupled method. (Some of you reported that this program does not work correctly in special cases; so be careful when using it) Please report program errors to me, I'll need full information about the question to understand which part is wrong. (You can take a photo of question and send it to my email) Thanks in a advance. |

| **psa.lfgssdl.zip** | 1k | 09-01-09 | | **lfgssdl 2.0** Gauss-Seidel Load Flow. This is the latest version. I tested it over many situations and it worked fine. You'll need "ybusc" to run this program successfully. (Uploaded on ticalc.org) |

| **psa.lfgs.zip** | 1k | 09-01-09 | | **lfgs 2.0** Gauss Load Flow. Note that this method is different from Gauss-Seidel method. (The formula used to calculate voltage is different) I tested it over many situations and it worked fine. You'll need "ybusc" to run this program successfully. (Uploaded on ticalc.org) |

| **psa.lfnr.zip** | 2k | 09-01-09 | | **lfnr 2.0** Newton-Raphson load flow This is the latest version. The program needs "ybusc" in order to run successfully. (you can find it on ticalc.org) In the previous version some people reported wrong answers in special cases; I hope those problems are solved in this new version (I've changed the algorithm). However if you found any errors please email me. |

| **psa.linegc.zip** | 1k | 09-01-09 | | **linegc 1.0 beta** You can calculate general coefficients of short or medium line using this program. (The program may need some improvements) |

| **psa.llinegc.zip** | 1k | 09-01-09 | | **llinegc 1.0 beta** You can calculate general coefficients of a long line using this program. (The program may need some improvements) |

| **psa.pwanlzr.zip** | 17k | 14-01-24 | | **pwanlzr 2.5** The main things this program is for: 1-Calculating current of load 2-Power factor correction (using a capacitor) Most of the time in a power system problem, the load is described by its power dissipation, for example we may know |S|, V, and PF or maybe Q, V, and PF, and we want to calculate some other information about the load. This program will ask you for known parameters and then calculates the current of the load plus some other information. While entering data, you don't need to convert line and phase parameter to each other (the program will do this for you). After calculating load parameters, you will have the option to enter a desired power factor, then the capacitor to reach that PF will be calculated. Some of the calculated parameters are stored in one-letter variables for ease of access in the future, these include: Z = phase impedance of load X = phase reactance of the capacitor V = phase voltage S = single phase power Q = single phase reactive power P = single phase active power I = phase current F = frequency. Note that: There is always a 30 degree difference between phase and line voltages/currents. Answers are calculated accordingly. |

| **psa.w2d.zip** | 1k | 09-01-17 | | **w2d 1.1** W2D Takes wye impedances/admittances and generates delta impedances/admittances. (Y2Ä) (Used when converting 3 phase loads) |

| **psa.ybusc.zip** | 1k | 09-01-17 | | **ybusc 2.3** Ybus creator Generates Ybus of a given network. |

| **ptable.zip** | 7k | 98-12-01 | | **Periodic Table v3.0** Periodic Table in both English and Norwegian. Features symbols, names, atomic mass, and electron configuration. |

| **pushincline.zip** | 1k | 09-10-20 | | **Pushing an Item on Incline** I wrote this program after finding myself trying to push a car from rolling down a driveway. Enter the angle of the incline, mass of the object, and the coefficient of friction, and calculate the minimum applied force needed to prevent the object from accelerating down. Enter the values with the parameters of pushincl(angle, mass, coefficient). |

| **pvnrt.zip** | 1k | 09-10-18 | | **Ideal Gas Equation** enter the parameters pvnrt(p,v,n,t), where p = pressure in atm, v = volume in L, n = number of moles, t = temperature in K. enter 0 for the one unknown, and solve for it |

| **qfunctionti89.zip** | 1k | 09-10-08 | | **Q Function** The Q Function is used to evaluate probability of error in digital communication - It is the integral of a zero-mean unit-variance Gaussian random variable from some specified argument to infinity. This function computes the value of the Q function with accuracy up to 8 significant digits. The Q function can also be defined as 0.5*erfc(x/sqrt(2)). |

| **qnotab.zip** | 1k | 01-06-12 | | **Quantum Number Table** table of quantum numbers used in determining electron configuration and such. A good question on tests. |

| **quantum.zip** | 10k | 03-09-01 | | **Physics Solver v1.2--Quantum Theory** A physics program which will allow you to solve for any variable from 10 different equations relating to quantum theory. |

| **range89.zip** | 1k | 05-08-02 | | **Range Formula Solver ** Solves the range formula for range, initial velocity, angle, or gravity. |

| **redoxbasic.zip** | 2k | 01-06-11 | | **Redox** Basic principles on how to balance a reduction-oxidation (redox) reaction and one example on how to do it. |

| **referenc.zip** | 740k | 07-03-22 | | **Referenc, Eng. References Referencias de Ingeniería-** [ENGLISH] REFERENC gathers information about the International System Units, physical constants, a general units converter and information of the codes of protection IP (International Protection) and IK. Finally, a series of programs for measures, including a calibrator and errors in measurement. [ESPAÑOL] REFERENC cuenta con información de unidades del Sistema Internacional (SI), constantes físicas fundamentales, un conversor general de unidades e información de los códigos de protección IP (International Protection) e IK. Por último, una serie de programas para medidas, como lo es una rutina educativa sobre el uso del calibrador Pie de Rey y ecuaciones de error en la medida. |

| **reflecti.zip** | 7k | 03-09-01 | | **Physics Solver v1.2--Reflection & Refraction** A physics program which will allow you to solve for any variable from 4 different equations relating to reflection and refraction. |

| **resbands.zip** | 2k | 00-12-04 | | **ResBands** Simple Dialog program allowing the user to input the color bands of a resistor then calculating the resistance. |

| **resfind1_1.zip** | 1k | 05-05-18 | | **Resistor Finder v1.1 (AMS 2.07+)** A program that will help you to find the resistor you're looking for, using the color codes. WARNING: Only works with the AMS 2.07 and newer. |

| **resfind_13.zip** | 1k | 03-03-05 | | **Resistor Finder v1.02** A programa that will help you to find the resistor you're looking for, showing the color code of the resistor that match with the value you enter |

| **resfind.zip** | 4k | 05-06-17 | | **Resistor Finder v2.00** This is a program that will help you to find the resistor you're looking for, showing you its color codes. UPDATE: Now only shows standard values. |

| **resistor2.zip** | 1k | 99-10-31 | | **Resistor Color Decoder v1.1** Calculates the resistance given four color stripes. |

| **resistor_46.zip** | 1k | 99-08-21 | | **Resistor 89** This is a BASIC program that identifies three band, four band, and five band resistors by their color codes. It is very small and efficient. To exit the program press esc from the main menu. It is easy to use and understand. |

| **resistor_capacitor89.zip** | 3k | 02-01-01 | | **Total Resistance/Capacitance** Calculates total parellel resistance or series capacitance |

| **resistor.zip** | 1k | 03-06-02 | | **Resistance Calculator** This BASIC program allows you to convert a given resistance into the standard colored stripes found on resistors and the other way around (color to resitance) |

| **resist.zip** | 1k | 09-03-25 | | **Resistance** Tells you the resistance of a resistor if you enter the color code. (4-band only) |

| **rlocdata.zip** | 123k | 09-04-05 | | **Root Locus Data** (Originally submitted 2005-10-14) Root Locus Data calculator. Calculates three most quintessential features pertaining to a root locus; namely its (1) Behavior at infinity, (2) Real-axis breakaway and break in points, and (3) Angles of arrival and departure. Any combination of positive/negative feedback and gain are supported. Handles non-minimum as well as minimum phase systems. Multiplicity of the zeros and poles are also taken care of in the program. |

| **rm_v_201.zip** | 18k | 05-03-09 | | **Resistencia de Materiales v 2.01** Program about Resistence of Materials. it does stress calculations and Mohr's Circle. Programa de Resistencia de Materiales, Hace todo tipo de calculo con Tensiones y con Circulo de Mohr. |

| **rm.zip** | 14k | 05-01-11 | | **Resistencia de Materiales** Programa para resistencia de materiales que calcula, tensiones principales, direcciones principales, tensiones octaedricas y circulo de mohr |

| **rna.zip** | 1k | 11-04-19 | | **Messenger RNA** Enter the nitrogenous bases of a strand of DNA and find the complementary sequence of mRNA bases. |

| **roboticsti89.zip** | 2k | 06-06-01 | | **Robotics - Pose Matrices** Two programs, one for RPY angles, and one for ZYZ Euler angles. Enter alpha, beta, and gamma angles in degrees. Program will solve rotation matrix and display it. Then it will ask for xyz coordinates, and then ask you to choose a letter "A" through "F" to assign to the resulting pose matrix which will save you a lot of time and makes it easy to multiply the resulting matrices. |

| **rocketrycalculator.zip** | 1k | 07-12-06 | | **Rocketry Calculator** "Rocketry" is a great "in the field" rocketry program, in BASIC, that runs calculations related to model rockets. Input the rocket's mass, the cross-sectional area, the coefficient of drag (usually .75), the impulse, and the burn time. It will then calculate your rocket's maximum velocity, maximum altitude, and optimum ejection-charge delay time. Just for fun, "Rocketry" maximizes the TI-89 Titanium's toolbar, text, and dialogue capabilities. The code has notes, by the way, to facilitate comprehension of the formulas. |

| **rootlocus.zip** | 1k | 99-11-06 | | **The Root Locus Program** Root locus diagrams as seen on paper, useful for control systems analysis. |

| **routh.zip** | 73k | 09-04-05 | | **Routh Hurwitz Stability Matrix ** (Originally submitted 2005-10-14) Routh-Hurwitz stability matrix generator. Generates the Routh stability table for the given characteristic polynomial. Handles both basic and special cases, namely a table that has (*) a Zero only in the first column, surmounted by epsilon method, (**) an Entire row of zeros, surmounted by even polynomial detection. Symbolic capability: generates the table even in the case of a parametric polynomial. |

| **rpyangle.zip** | 1k | 06-06-15 | | **RPY Angle** RPYANGLE calculates and displays the two possible sets of alpha, beta, and gamma angles by prompting the user to enter a rotation matrix by columns. |

| **s2s.zip** | 4k | 99-08-22 | | **S2S Symbolic Two ports Solver v1.0 Beta** A plug in for SCS. It allows you to calculate z,y,h,g,a and b parameters of a two port network. |

| **saxpc.zip** | 840k | 03-05-12 | | **BeamXP/FrameXP/TrussXP** SAxpC for TI89, TI92+ and VOYAGE200. This is an ultimate collection of all my structural programs to solve beams, frames(updated)(porticos) and trusses using the Stiffness Matrix Method or Displacements method, giving you the results step by step, drawing the beam, frame or truss, showing also an animation of the structure. All the programs give reactions on supports, displacements in nodes and internal forces in elements. Super coleccion de programas para resolver vigas, marcos y cerchas por el metodo de rigideces o desp´lazamientos dando graficas y resultados paso a paso. |

| **scs-shell.zip** | 9k | 00-03-31 | | **SCS-Shell v1.42** A shell for Roberto's Symbulator |

| **sdig.zip** | 1k | 98-10-06 | | **Significant Digits v1.0** This program will calculate the number of significant digits in a number. Useful in science classes like chemistry and physics. |

| **sections.zip** | 31k | 03-11-29 | | **Sections v 1.02** A little program that calculates area A, moment of inertia J and section modulus W of the most common sections... with a very simple interface! |

| **ser_par.zip** | 1k | 04-09-06 | | **complex impedance converter** Converting complex impedance from parallel to serial circuit and vice versa. |

| **setcust2.zip** | 1k | 05-10-21 | | **Custom Units** Here is a program I made when those units not in the built-in Units programs were missing. For example, in the Acceleration category, they didn't add units like (_m/(_s²)) or a Pressure unit named kilopascal (_kPa). Feel free to modify the program in any way you like. If you have problems, comments, or bugs, e-mail me. Enjoy P.S. I don't know how to change the picture file from BMP format to GIF format, so I apologize for that! By the way, I deleted the "L.A." part because that's part of a class I'm taking throughout the semester, but if you want it, e-mail me for those of you taking Linear Algebra class; however you don't need it if you're not taking the class. |

| **shellq.zip** | 9k | 01-06-01 | | **SCS-Shell v1.5 for "Symbulator Q"** This is a shell for Robertos latest stroke of genius, the "Symbulator Q". It is NOT a standalone program; Symbulator and DiffEq have to be on your calc. This shell allows you to edit the circuit matrix which is necessary to perform analysis with the "Symbulator Q". |

| **shm.zip** | 4k | 03-10-13 | | **Simple Harmonic Motion Analyzer** Given values for 4 of 10 parameters, this program returns values for all relevant quantities in simple harmonic motion, including energy, amplitude, period, frequency, mass, force constant, initial position and velocity, angular frequency, and phase constant. It also returns equations for position, velocity, and acceleration as functions of time. It evaluates position, velocity, and acceleration at a given time, velocity and acceleration at a given position, or the time at a given position. Results are copied to the home screen. |

| **sidrealclock.zip** | 20k | 07-04-26 | | **2007 Sidreal Colck** This is the Upgrade to 2007 for the sidereal program. This hand program will calculate GST as well as LST for any observer for 2007. This has accuracy of about 1/50 an arcsecond and perfect accuracy on the middle day of the year (compared with USNO publications). So, enjoy... I promise 2008 will be out in a more timely fashion. |

| **signal89.zip** | 261k | 00-08-12 | | **Signal Processing v240** Filter,DFT2D,IDFT2D,DCT2D,IDCT2D,FFT2,CONV2,Correlation, and more... |

| **simplex2.zip** | 10k | 00-07-02 | | **Simplex (Portugues/English)** Step by Step method simplex. Método Passo a passo com matriz. |

| **siunits.zip** | 5k | 05-11-19 | | **SI units** Program SIunits() represents all 27 SI units with names, abbreviations and units. |

| **smith.zip** | 19k | 05-05-27 | | **Smith Chart (Carta de Smith)** Compatible for TI-89 or TI-89 Titanium, english or spanish. This program makes the calculations required for the matching of a transmision line whith a Stub of short-circuit. It gives the two possible solutions to the problem. Compatible para TI-89 o TI-89 Titanium, español o inglés. Este programa realiza los cálculos requeridos para la adaptación de una linea de transmisión con un Stub de corto-circuito. Él da las dos posibles soluciones del problema. |

| **solubilitytable.zip** | 1k | 01-06-11 | | **Solubility Table** A table of which substances are soluble and which aren't in water. |

| **soluble_ions.zip** | 1k | 06-08-05 | | **Ionic Solubility** Select the cation and anion and you will get the specific solubility. |

| **soluble.zip** | 6k | 10-11-23 | | **Solubility Tester** Function that predicts whether a given compound is soluble in water or not. Returns true/false, "slightly soluble", or undef. |

| **speakerbuilder.zip** | 5k | 07-07-01 | | **Speaker Builder (Version 1.0)** Speaker enclosure calculation and design program. Offers sealed and vented boxes, crossovers, impedance compensation and attenuation networks, series notch filters, and the choice to optimize calculations based on Bullock's formulas. Easy-to-use interface and swift navigation. Still under development but constantly evolving. I've been writing this program for over a week now from a halfway house downtown.. finishing up a 4-year prison sentence.... enjoy :) |

| **specheat.zip** | 1k | 00-10-30 | | **Specific Heat Finder v1.0** Finds the specific heat of a substance given the energy gained/lost, the mass, and the change in temperature |

| **statics2.zip** | 235k | 08-04-14 | | **Statics (2 dimensional)** This program solves two dimensional statics (equilibrium) problems. This update allows the solution of more complex structures, such as trusses, by enabling its application to components of a structure as well as to the structure as a whole. The program could be used for the whole structure first to determine any external forces, then to find forces in individual members or forces acting at a joint. A maximum of 3 unknowns can be found if forces are applied at more than one point, or 2 if all forces are applied at one point. If there are too many unknowns, you will be prompted to choose a component, which could be a single member, a section, or a joint, involving some of the same unknowns so more equations are generated, perhaps allowing solution. Up to 9 equations in 9 unknowns can be solved. Several examples are included. |

| **statics3.zip** | 257k | 08-05-27 | | **Statics (3 dimensional) ** This program solves three dimensional statics (equilibrium) problems. This update allows the solution of more complex structures, such as trusses, by enabling its application to components of a structure as well as to the structure as a whole. Most commonly, the program would be used for the whole structure first to determine any external forces or couples, then to find forces in members or forces acting at a joint. Each force and the position vector of its point of application, as well as any couples, are entered. Vectors can be entered in rectangular coordinates, or as a given magnitude along a line between two specified points. If there more unknowns than equations, you will be prompted to choose a component, which could be a single member, a section, or a joint, involving some of the same unknowns so more equations are generated, perhaps allowing solution. Solutions are found by means of the TI Simultaneous Equation Solver. Vector magnitudes or vector components can be solved for, but not angles. Angular unknowns can usually be avoided by using components or by specifying direction along the line between two given points. Solutions are saved and copied to the home screen for use in further calculations. Several examples are included. |

| **stats.zip** | 447k | 07-03-31 | | **Stats, Statistics -Estadísticas-** [ENGLISH] STATS (Statistics) gathers a series of programs and functions to facilitate the statistical analysis and the edition of lists. Based on the Texas Instruments FLASH APP, with the difference that occupies much less space and altogether with the Hail application by Samuel Stearly it becomes a great alternative. It has a list editor, does operations between lists, regressions, analysis in one and two variables, distributions (StatLite 1,02) and much more .[ESPAÑOL] STATS (Estadística) reúne una serie de programas y funciones para facilitar el análisis estadístico y la edición de listas. Está basado en la aplicación FLASH APP de Texas Instruments, con la diferencia que ocupa mucho menos espacio y en conjunto con la aplicación Hail por Samuel Stearly se convierte en una gran alternativa. Cuenta con un editor de listas, operaciones entre listas, regresiones, análisis en una y dos variables, distribuciones (StatLite 1.02) y mucho más!. |

| **stdmthd.zip** | 1k | 04-05-03 | | **Standard Step Method for Water flow** This program will calculate an array of values for water flow, but ultimately the purpose is to calculate a depth of water upstream/downstream givin certain paramaters. It operates with a percision of -+0.05. |

| **steam2.zip** | 30k | 08-01-21 | | **Steam & Water Properties** esta es la version mejorada de steam and steam propierties... ademas de las caracteristicas anteriores, se disminuyo totalmete el tiempo de calculo... devido a que se hizo una correcion en la logica del programa... hay para los de generadores y trasnferencia(del ITCJ), sin olvidar termodinamica, creo que este programa les ayudara demasiado... suerte!!! BY S.T.G |

| **steam.zip** | 19k | 08-01-08 | | **Steam and Steam Properties Finder** este es un programa que permite encontrar las propiedades termodinamicas del vapor de agua. trabaja con una matrices de 100 x 5 almacenando los valores de vapor de h2o del libro de Yonus Cengel. trabajando para liquido saturado y vapor sobrecalentado. conociendo valores de p, t, p y t. ademas involucra el parametro de calidad (x). espero que sea de tu ayuda. creado por sebastian torres garcia. este programa interpola automaticamente. si los valores estan fuera de rango. solo para el sistema internacional. proximas modificaciones, un conversor para utilizar el programa en varios sistemas de unidades. cualquier clase de comentarios me gustario saberlo a flor.de.elote@hotmail.com |

| **stoi_2k.zip** | 1k | 00-10-29 | | **Stoichiometry 2000** Stoichiometry 2000, converts from and to Moles, Atoms, Grams, and Liters (at STP). This is truly the easiest and best stoichiometric converter in BASIC for the TI-89! |

| **stoichgas.zip** | 1k | 02-05-14 | | **Stoichiometry VP=nRT** This is a fully functional program that allows to solve for a given variable with givens: volume, moles, temperature. It opperates with all most all the needed units, and it provides a multi-unit answer. |

| **stoich.zip** | 63k | 01-06-01 | | **Stoich** -v0.45- Stoich is a chemistry BASIC program for the TI-89 that can help solve stoichiometry problems. So far, Stoich v0.45 is the most complete stoichiometry solver with the smallest size. Added Stoichiometry solver. |

| **strainmatrix.zip** | 1k | 02-11-01 | | **Matrix Solution of Strain Equation** This program uses matricies to find the strain. Uses six knowns and figure out 3 unknowns. Practical for finding Strain in Machine Design |

| **stress2.zip** | 1k | 05-08-23 | | **Stress** Program that calculates principal stresses, stress invariants and unitary vector coeficients for the normal stress just given the stress matrix. |

| **stress.zip** | 1k | 02-11-01 | | **Easy Combined Stress Equations** This program finds all the unknowns that Mohr's Circle would get for you, but in more basic form.. straight answers. With the entering of 4 knowns, a bunch of unknowns are calculated based on proven equations. |

| **struceng.zip** | 3k | 99-12-26 | | **Structural Engineering Progs** Here are some programs that I wrote for structural engineering. I hope they help others as much as they have helped me. |

| **suntheta89t.zip** | 2k | 12-10-13 | | **Sunθ89T v2.5** This program calculates solar position given UTC time and location. See the README for full information. This program requires a HW2 TI-89 or a TI-89 Titanium. |

| **surveying.zip** | 2k | 00-05-29 | | **Surveying Tools** A preliminary version of outdoor surveying tools. This version features only basic transit surveys for elevation and distance measurements. Future versions might include more advanced tools. |

| **t2.zip** | 18k | 06-03-26 | | **Thermodynamics 2** Equation of State solver and more. Useful for Chemical engeneering students |

| **t89v1.5.zip** | 2k | 04-10-10 | | **T89 MULTICONVERTER v1.5** T89 MULTICONVERTER Version 1.5 I mainly suppose that i had to make this program since to convert temperatures from one unit to multiple others and pressures wouldn't be nice using the calc built-in translator. The program is far simple! Just copy t89.89p, pres.89p, temp.89p, ene.89p, vesp.89p to your calc and then launch t89() select an option and enjoy! I hope my next upgrade will be done for the humidity tables Andres Valencia M valenceicq@hotmail.com |

| **t89.zip** | 1k | 04-09-27 | | **T89 MULTICONVERTER** Do you want to know what it does??? IT CONVERTS PRESSURE AND TEMPERATURE IN MULTI UNITS, for a bigger reference, download it and use it. |

| **tamizado.zip** | 102k | 11-07-18 | | **Analisis Granulometrico** Este es un programa que realiza un analisis granulometrico, basado en la norma ASTM C 136. Este programa realiza el analisis basado en el diametro de cada malla en un juego de mallas y el peso de material granular retenido en cada malla. Luego, clasifica el material en gravas, arenas y finos de acuerdo a la misma norma. Despues, hace un analisis basados en los parametros de coeficiente de curvatura y de concavidad, y traza la curva granulometrica. |

| **telept.zip** | 4k | 00-10-01 | | **Telescope Pointer** Calculates altazimuth telescope alignments for any day of the year, any time. Just enter the right ascension and declination. |

| **temp2000.zip** | 1k | 01-05-16 | | **Temp2000** This is a temperature converter for the 89. It converts between kelvin, celsius, and fahrenheit. And, as an added bonus, it actually works! |

| **temp89.zip** | 2k | 00-04-07 | | **Temperature Converter 89** Converts temperatures from kelvin, fahrenheit, or celsius to kelvin, fahrenheit, or celsius. It is much faster than the temperature converter already on the TI-89. It is very easy to use. |

| **tempconv2.zip** | 12k | 02-06-19 | | **Tempconv** -v.1- Tempconv is an easy to use temperature conversion program that can be used anywhere a temperature conversion is needed. Internally, the program fully uses the tmpCnv() function that is built in to the TI-89. Therefore Tempconv can save lots of space without loosing the ability to give an accurate conversion. |

| **tempconv.zip** | 1k | 02-04-15 | | **Temperature Conversion** Two functions which convert between Celsius and Fahrenheit. f2c(x) returns the Celsius value of a Fahrenheit temperature. c2f(x) returns the Fahrenheit value of a Celsius temperature. Example: f2c(32) returns 0, and c2f(100) returns 212 (freezing & boiling points of water, respectively). |

| **termo2.zip** | 683k | 07-09-17 | | **Termo, Thermodynamics -Termodinámica-** [ENGLISH] This program allows you to calculate the thermodynamic properties of the water making use of the formulations that the IAPWS made, from year 1997 to year 2005, called IF97 and that are published on http://www.iapws.org. The necessary equations for saturated water (liquid-steam balance), over heated water steam and compressed liquid water were programmed; being the most used in engineering. Thanks to these formulations you can find properties from different combinations from inputted data, as well as configure the units in which you wish to enter the information and see the results. There are also ideal, solid and liquid gas information, and equations, classified by subjects, that can you can easily visualize and evaluate. Te contents are: 1 Reference, 1,1 Thermodynamic Properties of the Water, 1.1.1 Saturated Water (balance liquid-steam), 1.1.2 Over heated Water Steam, 1.1.3 Compressed Liquid Water, 1.1.4 Configuration, 1,2 Properties of Diverse ideal, Solid and Liquid Gases at 25ºC, 1.2.1 Ideal Gases, 1.2.2 Solids and Liquids, 1,3 Linear Interpolation (Simple/Doble). [ESPAÑOL] Este programa le permite calcular las propiedades termodinámicas del agua haciendo uso de las formulaciones que la IAPWS realizó, desde el año 1997 hasta el año 2005, llamadas IF97 y que se encuentran disponibles al público en http://www.iapws.org. Se programaron las ecuaciones necesarias para agua saturada (equilibrio líquido-vapor), vapor de agua sobrecalentado y agua líquida comprimida; por ser las más usadas en la ingeniería. Gracias a estas formulaciones puede encontrar propiedades a partir de diferentes combinaciones de datos de entrada, así como configurar las unidades en las que desea ingresar la información y ver los resultados. También se incluye información de diversos gases ideales, sólidos y líquidos, y se facilitan ecuaciones, clasificadas por temas, que puede visualizar y evaluar fácil y rápidamente. Lo contenidos son: 1 Referencia, 1.1 Propiedades Termodinámicas del Agua, 1.1.1 Agua Saturada (equilibrio liquido-vapor), 1.1.2 Vapor de Agua Sobrecalentado, 1.1.3 Agua Líquida Comprimida, 1.1.4 Configuración, 1.2 Propiedades de Diversos Gases ideales, Sólidos y Líquidos a 25ºC, 1.2.1 Gases Ideales, 1.2.2 Sólidos y Líquidos, 1.3 Interpolación Lineal (Simple/Doble). |

| **termo.zip** | 99k | 03-05-25 | | **Termo** This programs gives you the properties of satured water, r12 and r13 |

| **tgm.zip** | 1k | 05-08-16 | | **TGM Units** A measurement system designed by Tom Pendlebury. |

| **thermal.zip** | 9k | 03-09-01 | | **Physics Solver v1.2--Thermal Energy** A physics program which will allow you to solve for any variable from 6 different equations relating to thermal energy. |

| **thermodynamics.zip** | 55k | 08-09-15 | | **Thermodynamics RELOADED** It's the same set of programs I uploaded a long time ago. Several people told me someone messed up with the file and deleted the programs and left only the readme file. Now you can use all 4 programs. They are the specific heat of liquids, solids and gases plus the heat of formation. Spanish only! |

| **throughput.zip** | 10k | 03-07-09 | | **THROUGHPUT** This program creates the very long (to do) table called THROUGHPUT, wich calculate the mean number of pieces in a system. |

| **ti89nist.zip** | 9k | 04-01-02 | | **TI89 NIST Physical Constants v1.0** TI89NIST installs over 70 of the NIST physical constants on your TI-89, all with std. and rel. std. uncertainties, and appropriate units (over 200 variables in all). It includes universal, E-M, atomic, particle, physico-chemical and adopted values. 'viewcons' is a nifty, optional, menu-driven application which allows the user to find the variable name for a constant, given its description or standard symbol. |

| **tipsychrocalc.zip** | 10k | 07-07-10 | | **TI PsycroCalc** This program is a humid air property calculator. It's like using a psychrometric chart, it calculates humidity, enthalpy, dew point temperature, etc. |

| **tispice.zip** | 87k | 01-06-01 | | **TiSpice v4.11** Symbolic Circuit Simulator (German and English documentation) |

| **titrates.zip** | 1k | 00-04-22 | | **Titration Helper** This program allows you to take out the errors of hand-calculating titration problems |

| **tlines.zip** | 5k | 02-03-04 | | **tlines89 v1.1** Transmission lines analysis program and smith chart plotter. Now with stub design functions!. |

| **topo2004.zip** | 18k | 04-12-07 | | **Topo 2004** calculate of polygonal closed and opened. by acimut and internal angles. calculate of Radiations. Trigonometrical leveling. Horizontal Distances. Interpolation of levels curves. Calculo de poligonales cerradas y abiertas. Por acimut y Ã¡ngulos internos. Calculo de Radiaciones. Nivelacion TrigonomÃ©trica. Correccion de Distancias Horizontales. Interpolacion de curvas de nivel. |

| **topof89v0.1a.zip** | 33k | 03-03-05 | | **TOPOF89 V0.1A** TOPOGRAFIA FACIL PARA TI 89 VERSION 0.1A (AGOSTO DE 2002) |

| **torque.zip** | 42k | 06-12-19 | | **Torque and Angular Acceleration** This update fixes a potential problem involving a subroutine. This program solves problems involving rotation caused by any number of forces (in a plane) applied at different points on an object. Either numerical or symbolic solutions can be found. Equations are displayed as the program runs and are also copied to the home screen. When the number of unknowns exceeds the number of equations, you can choose which to solve for: the rest are treated as parameters. All solutions are copied to the home screen. Two worked examples are included. |

| **tpde1.00.zip** | 109k | 03-11-03 | | **TPDE 1.00** Et voici une classification périodique de plus... En fait, c'est l'un de mes premiers programmes en BASIC qui date d'il y a un petit bout de temps déjà, mais vu que certaines personnes veulent l'avoir car il faut avouer qu'il n'est pas si mal que ça pour un programme en TI-BASIC et bien le voilà. Il utilise la librairie FLIB de François Leiber qui est fournie avec. |

| **tpsw.zip** | 3k | 01-06-01 | | **TPSW v1.0** Thermophysical properties of saturated water |

| **tquimica.zip** | 508k | 09-04-13 | | **Tquimica** [English] Program for calculation of real gas Real Gases * By the method of Van der Walls - Using the scoring method - Newton Raphson Calculating: + Volumes + Moles * And the equation of Clausus Clapeiron Calculating: - Pressures - Temperatures - Enthalpies - Moles - Molar amount of heat flib uses (including here), some features ... [español] Programa para el calculo de gases reales Gases Reales * Mediante el metodo de Van der Walls - Utilizando el metodo de Tanteo - Newton Raphson Calculando: + Volumenes + Moles * Y la Ecuacion de Clausus Clapeiron Calculando: - Presiones - Temperaturas - Entalpias - Moles - Cantidad De calor molar utiliza flib(incluido aqui), en algunas funciones... |

| **tracker.zip** | 97k | 00-09-05 | | **Hurricane Tracker v4.0** The most advanced hurricane tracker ever written for a calculator! Includes 5 amazing zoomable and highly detailed maps, forecasting, and tons of other features! |

| **triples.zip** | 1k | 02-09-27 | | **Pythagorean Triples** This program lists all pythagorean triples |

| **troy.zip** | 1k | 02-04-11 | | **Troy Mass Units** .89e files for Troy pounds, ounces, and drams |

| **truepos.zip** | 51k | 02-11-08 | | **True Position Calculator** This program returns the true position of a feature relative to its nominal location. GD&T data is returned as well as a sketch of the deviation. Useful to people who deal with manufactured parts. |

| **truss.zip** | 454k | 02-04-06 | | **Truss v0.05 beta** Uses matrix methods to solve reactions, displacements, member forces for 2-D trusses. Version 0.05 beta. |

| **tspice.zip** | 227k | 99-12-08 | | **TiSpice v4.0** Symbolic Circuit Simulator (Sorry, German documentation). |

| **turbomaq.zip** | 90k | 07-06-25 | | **Turbomaq** ENGLISH: This program calculates head loss (PÉRDIDAS), flow reason (CAUDAL) and average pipe diameter (DIÁMETRO). I used it in my class of Hydraulic Turbo - machines. TI-89, TI-92, TI-92 Plus, Voyage 200 and TI-89 Titanium compatible. ESPAÑOL: Este programa calcula pérdida de carga (PÉRDIDAS), razón de flujo (CAUDAL) y diámetro medio de la tubería (DIÁMETRO). Lo utilicé en mi clase de Turbo - máquinas Hidráulicas. Compatible con TI-89, TI-92, TI-92 Plus, Voyage 200 y TI-89 Titanium. |

| **turing.zip** | 2k | 00-09-26 | | **Virtual Turing Machine** This program simulates a 5-tuple turing machine. Operation is simple and there are no bugs, as long as you do not go beyond the tape. |

| **unifac.zip** | 47k | 06-03-11 | | **Unifac Method** This program calculate the activity coeficients for a mixture of "n" components |

| **unit_converter.zip** | 2k | 07-12-30 | | **Unit converter** This is a really cool program that converts many different units of measure. Just run the program and go to the main menu. Then, click on any of the different sections and a list of all the conversions will come up. Click on one of them and it will ask you for a value. Type in the certain value and it will convert it into a different unit. |

| **units.zip** | 20k | 00-09-24 | | **Units** Barre d'unités très pratique |

| **upt.zip** | 20k | 00-05-03 | | **Universal Periodic Table** A periodic table with a research module, multi-language: English, French, German and Spanish; works with PLUG-INs : install only what you need!!! total compatibility between TI89 and TI92: the table is in full screen on both calc! |

| **utility89.zip** | 1k | 99-02-28 | | **Significant Digits v2.1** Contain 2 program in it. One is use to help you calculator the of Sign. Digit, and other is all the formula in Physics |

| **vapor.zip** | 1k | 05-06-23 | | **Vapor Pressure** This program allows to calculate the vapor pressure of several gases. Este programa permite calcular la presión de vapor de varios gases. |

| **vector89.zip** | 2k | 00-02-13 | | **Vectors-89 v2.2p** Update of the popular Vectors89 program that now includes a faster, better graphing subroutine! |

| **vectors.zip** | 9k | 03-09-05 | | **Physics Solver v1.2--Vectors** A physics program which will allow you to solve for any variable from 9 different equations relating to vectors. |

| **vector.zip** | 1k | 98-10-03 | | **Vector Addition** Adds vectors and displays them graphically. |

| **velocity.zip** | 7k | 03-09-05 | | **Physics Solver v1.2--Velocity** A physics program which will allow you to solve for any variable from 3 different equations relating to velocity. |

| **vigas_58.zip** | 17k | 02-02-16 | | **Vigas (Beam Solver)** Obtiene las fuerzas resultantes en los apoyos de una viga, crea la gráfica de Cortantes y la de Momento Flexionante, con una interfaz gráfica muy fácil de usar. |

| **vigas.zip** | 443k | 03-04-26 | | **Vigas v1.2** Programa de analisis estructural por el metodo de rigideces. Calcula reacciones, desplazamientos nodales y fuerzas internas. Grafica Cortantes. |

| **virial.zip** | 1k | 05-07-01 | | **Virial Equation** Designed to calculate the "B" coefficient of Z=Pv/RT=1+B/v Very complex and long equation used in Chemical Engineering for real gases |

| **vsepr89.zip** | 1k | 01-12-22 | | **vsepr89** VESPR Theory/molecular shape originally for TI-86, modified code for 89 |

| **wakjv2.1.zip** | 2k | 03-05-05 | | **Water Calculation V2.1** This is a much needed update to my previous wakj program. It allows you to solve for energy, or mass. I made a new user interface, and included some enhancements which should speed up the loading and calculation processes. |

| **wakj.zip** | 3k | 00-04-15 | | **Water Calculation** It helps determin the amount of energy required to change the temp of water. |

| **watercal.zip** | 2k | 99-05-21 | | **WaterCal** Calculates the amount of calories needed to change the temp of an amount of water from any temperature in Celsius to any other temperature. |

| **wavedis.zip** | 1k | 99-11-10 | | **Linear Wave Dispersion v1.0** Computes the length of an ocean wave for a given period and water depth. |

| **waves.zip** | 9k | 03-09-05 | | **Physics Solver v1.2--Waves** A physics program which will allow you to solve for any variable from 8 different equations relating to light and sound waves. |

| **weakacidbase.zip** | 1k | 09-10-22 | | **Weak Acid & Base pH/pOH Calculator** Enter the equilibrium constant and the molarity of the weak acid or base, and find the pH or the pOH. Enter with parameters of wkacdbas(constant,molarity). |

| **weight.zip** | 1k | 01-06-01 | | **Solar Weight Calculator** This programs takes an input in Earth Pounds and converts it so you can see what something of that weight would weight on other planets and the moon. |

| **wiot.zip** | 1k | 04-04-21 | | **WIOT 1.0 (Wind Influence On Temperature) ** A program that will calculate the wind influence on temperature. |

| **wolfram.zip** | 3k | 02-06-04 | | **Wolfram's Rule #30** For a REALLY good explanation, look at http://www.wired.com/wired/archive/10.06/wolfram.html . Otherwise, read the readme. |

| **workenergyprinciple.zip** | 189k | 11-03-17 | | **The Work-Energy Principle** This program uses the Work-Energy principle to solve problems involving any number of forces (in a plane) applied to an object or a system of objects, pulleys, and springs. It treats objects as point particles, that is, it will not treat rotation (except pulleys). If a pulley has mass, it is treated as a separate object in the system. The program will handle some cases of motion on a curved path if friction is the only non-constant force which does work on the object. Either numerical or symbolic solutions can be found, although the symbolic solutions are sometimes slow. Equations are displayed as the program runs and are also copied to the home screen. Several worked examples are included. |

| **work.zip** | 9k | 03-09-05 | | **Physics Solver v1.2--Power & Work** A physics program which will allow you to solve for any variable from 8 different equations relating to power and work. |

| **xcsim082.zip** | 65k | 99-06-19 | | **XCsim v0.82** Numerical and symbolic circuit simulator |

| **xcsim083.zip** | 48k | 99-06-24 | | **Circuit Simulator** Symbolic and numeric circuits simulator |

| **xcsim.zip** | 227k | 99-11-21 | | **Xcsim v0.82 FR & US** Both US & FR / 89 & 92 versions of electronic circuit simulator |

| **xs.zip** | 48k | 01-12-22 | | **xs** Section Properties Program - calculates A, I, r, etc. for single or composite sections of multiple materials |

| **ztable.zip** | 10k | 00-06-08 | | **Ztable v5.0** Best Periodic Tables in BASIC. Fast and full of information(such as,boil point, melt point, crystal structure, elament type,...) and much more |

| **zyzangle.zip** | 1k | 06-06-15 | | **ZYZ Angle** ZYZANGLE calculates and displays the two possible sets of alpha, beta, and gamma angles by prompting the user to enter a rotation matrix by columns. |

| **zzhzs.zip** | 81k | 07-03-31 | | **Thermodynamic Tables A.5, A.6 and A.7** ENGLISH: This program calculates compressibility factor, enthalpy deviation and entropy deviation using tables and double interpolation. TI-89, TI-92, TI-92 Plus, Voyage 200 and TI-89 Titanium compatible. ESPAÑOL: Este programa calcula factor de compresibilidad, desviación de entalpia y desviación de entropía usando tablas y doble interpolación. Compatible con TI-89, TI-92, TI-92 Plus, Voyage 200 y TI-89 Titanium. |