| __Name__ | __Size__ | __Date__ | __Rating__ | __Description__ |

| **(Parent Dir)** | *folder* | | **Up to TI-83/84 Plus BASIC Files** |

| **biology** | *folder* | | **TI-83/84 Plus BASIC Science Programs (Biology)** |

| **chemistry** | *folder* | | **TI-83/84 Plus BASIC Science Programs (Chemistry)** |

| **electricity** | *folder* | | **TI-83/84 Plus BASIC Science Programs (Electricity)** |

| **physics** | *folder* | | **TI-83/84 Plus BASIC Science Programs (Physics)** |

| **unitconv** | *folder* | | **TI-83/84 Plus BASIC Science Programs (Unit Converters)** |

| **555ti84.zip** | 4k | 14-12-07 | | **555 Astable Multivibrator** Design or analyze 555 multivibrator circuits. Calculates components, frequency, period, low and high pulse durations and duty cycle. Graphical representation of pulse output. To execute, select AST555 from the prgm menu. See the README file for more details. |

| **celestia.zip** | 50k | 12-04-06 | | **Celestia V3.41** Converts celestial co-oords for Messier, NGC, Named Stars, and planets to horizon co-ords. Planet positions are dynamically calculated. |

| **creoq.zip** | 1k | 12-01-10 | | **Continuous Rate EOQ** This program will compute the EOQ assuming a continuous production rate. Enjoy! |

| **eco42.3.zip** | 1k | 03-05-25 | | **Eco4** Eco4 is a BASIC program to assist you with economy in school in the 4th year in Belgium. |

| **electronshells.zip** | 1k | 09-04-09 | | **Electron Shells** A very easy to use program that gives you the electron configuration when you enter the atomic number. Works with all atomic numbers from 1-109. ENJOY!! Please Rate after downloading!! |

| **eoqbordr.zip** | 1k | 12-01-10 | | **EOQ with Back Orders** This program will compute the EOQ with back orders allowed. Enjoy! |

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

| **fq11_8xp.zip** | 6k | 12-03-07 | | **FQ 11** *ALL PROGRAM IN PORTUGUESE Várias utilidades para Fisica E Quimica A 11ºAno para resolver exercicios! |

| **geographyaltitude.zip** | 1k | 04-10-23 | | **Geography Altitude Solver** Calculates height or degrees given a temp at a certain height and desired height or temperature. |

| **heatindx.zip** | 1k | 03-03-09 | | **HeatIndex** HeatIndex is a program that allows the user to enter the temperature in degrees Fahrenheit and the percent relative humidity to calculate the heat index. The formula used to find heat index can give unreasonable results if the user uses unreasonable temperatures that heat index would not be associated with. The formula however works very well with reasonable heat index associated temperatures! |

| **idealgas.zip** | 1k | 12-01-24 | | **Ideal Gas Law (The condensed version) v1.1** This runs a series of text screens that describes how the IGL is measured, lists the 3 common laws and has the Ideal constant. Great for reviewing for High School Physics tests. I'll slowly expand the definitions and material. *Update Clarifies laws, adds more information and cuts out any repeated information. |

| **moonecl.zip** | 2k | 03-03-17 | | **Lunar Eclipses** Compute, for any given year and month, the times of the possible lunar eclipse. |

| **moonph.zip** | 2k | 03-03-09 | | **Phases of the Moon** Compute, for any given year and month, the istant of the selected Moon phase. |

| **noteseti.zip** | 16k | 05-05-06 | | **Notes v1.0** This is a program I've made when I was at school. It's full of formulas for math, chemistry, physics, economics and more... There is also automatic calculators with the formulas, an automatic calculator with a triangle to know all informations about it when you know somes and... So, if you are studying, it's a very good idea to download this !!! |

| **peos2.zip** | 1k | 12-01-10 | | **Price Elasticity of Supply Version 2** This program works with the differential form of PEoS, not a discrete form like my previous program. Enjoy! |

| **prefdet.zip** | 1k | 12-12-26 | | **PrefDet - SI prefixes determiner** With this program you can enter data and get the answer in standard prefixes for the SI units of measurement. |

| **prefix.8xp** | 1k | 02-09-05 | | **Prefix** Prefix Table |

| **reftabl.zip** | 1k | 03-04-13 | | **Refrence Tables v2.0** Handy set of refrence tables. Includes many earth science equations, conversions, and physics equations. Tells you how to do them and does them for you. Essential to school students. |

| **resumosfq1011.zip** | 67k | 12-03-07 | | **Resumos FQ 10-11 Ano** *PROGRAM IN PORTUGUESE* Resumos de materia de Fisica E Quimica A do 10º E 11º ano. |

| **roboticsti83.zip** | 1k | 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. |

| **science.zip** | 1k | 09-01-26 | | **Frequency, Wavelength, and Energy** Program that manipulates frequency and wavelength. |

| **sfdata.zip** | 2k | 04-02-16 | | **Science Fair Data Manager** Are you a disorganized, messy person? Chances are yes. Being disorganized, what do you think the chances are that you will lose your science fair notebook, your precious data included? Fifty percent? Fifteen percent? That's a fifteen percent of failing science this semester. This simple, no-frills-included program provides you with a decent way of inputting/editing/viewing/archiving/testing your data. |

| **sigfig2.zip** | 1k | 11-10-18 | | **Significant Figures Calculator (Optimized)** This is a program to make those awful significant figures a piece of cake! just type in the numbers and all the rules are applied automatically. It can do Addition, Subtraction, Multiplication, and Division. Credit goes to Gilad Barlev for his great program; I just made it smaller, made it MirageOS compatible, and added the Subtraction mode. |

| **sigfig_cl.zip** | 1k | 04-03-09 | | **SIGFIG_CALCULATOR_0.1** Significant Calculator 0.1 work in most conditions, even with E notation! |

| **sigfig.zip** | 1k | 03-06-04 | | **Significant Figures Calculation** This program calculates using significant figures. It adds (/subtracts), multiplies, and divides. It does NOT display your number in scientific notation, but in common form. |

| **significantfigures.zip** | 1k | 06-04-12 | | **Significant Figures** This program will save you a couple of hours of having to learn how to count significant figures in Chemistry Class. Automatic "Sig Fig" calculator, this is a must download for any Chemistry student. (Now updated to do E notation and negative numbers) |

| **simplexmethodmax..zip** | 23k | 11-08-31 | | **Linear Programming - Simplex Method - Maximization **
*[Text only]* Hello everyone, The following contains the SIMPLEX METHOD WITHOUT SENSITIVITY ANALYSIS: Using material from Frederick S. Hiller, Gerald J. Lieberman. Introduction to Operations Research. New York: McGraw Hill, 2005. Print. Please let us know, if you would like us to include modifications, improvements, and any additions to the code. Please share your feedback by contact us at inquiry@haulwind.com |

| **simplexminmax.zip** | 26k | 11-08-31 | | **Linear Programming - Max, Min, and Excess Analysis**
*[Text only]* Hello everyone, The following contains the SIMPLEX METHOD WITHOUT SENSITIVITY ANALYSIS: Using material from Frederick S. Hiller, Gerald J. Lieberman. Introduction to Operations Research. New York: McGraw Hill, 2005. Print. Please let us know, if you would like us to include modifications, improvements, and any additions to the code. Please share your feedback by contact us at inquiry@haulwind.com |

| **sunrisingandsetting.zip** | 4k | 04-06-22 | | **Sun: rising & setting for western europe (not UK)** This program calculates the times, when sun rises and sets in the timezone GMT+1 (D, NL, B, DK, S, E; not UK and P). Program on English, German & Dutch. Better and completer versions will follow. |

| **suntheta84.zip** | 2k | 12-10-13 | | **Sunθ84+ v2.5** This program calculates solar position given UTC time and location. See the README for full information. This program uses TI-84 Plus tokens, and won't install on a TI-83 Plus. Use Sunθ83 instead, it works the same. |

| **timeline.zip** | 1k | 03-03-09 | | **Geographic Timeline** A geographic timeline streching from the Precambrian Era, to today. Includes all the periods, their starting time, and their ending time. |

| **tirasp.zip** | 83k | 12-02-01 | | **TI-RASP** Model rocket altitude simulation program based on RASP-79E by G. Harry Stine, from his classic book "The Handbook of Model Rocketry". TI-RASP adapts RASP-79E to the TI-83+ and uses a list variable (ENGIN) to store thrust curve data for A8, B6, C6 and D12 engines. User-defined engines can also be added. This is a great teaching tool for high school students, as it shows practical applications of math and physics and supports hands-on experimentation. |

| **toolz.zip** | 7k | 02-04-02 | | **Tool Pack, academic** Has six parts which will help in math and science courses. The programs include a stiochiometry program, precent composition program, standard deviation program, herons formula program, a superb triangle solver that solves for just about anything dealing with the side lengths and angle lengths of the triangle, and for good measure a program that deals with solving for the angle of two vectors and finding their dot product. |

| **tornado.8xg** | 37k | 03-04-09 | | **Tornado OS** These are basically all of my programs and some created by others regarding math and science. You most likely will have to have a nearly clear ram to ungroup these and will have to archive a few of the larger programs that you dont plan on using but there is a vast amount of programs that are in reference to physics equations good luck and enjoy.please email me with any questions or suggestions thank you. spydrfreak@hotmail.com |

| **tornedo.zip** | 3k | 04-03-16 | | **Tornado Wind Speed Calculator** This is a simple program that can calculate the wind speed of a tornado based upon the distance in which it traveled. |

| **ttest.zip** | 2k | 04-02-04 | | **T-Test Master** A simple, quick t-test program that will save you hours of grueling work on your upcoming science fair paper and will tell you whether your data is statistically significant or not. Much easier to use than the built-in T-test function! |

| **vsepr.zip** | 1k | 13-05-02 | | **VSEPR** This program displays the predicted molecular geometry, hybridization and bond angles for a given molecule. |

| **wades.zip** | 1k | 13-05-30 | | **Wade's Style Extruder Steps/mm Calculator** This a 3D Printer calculator made for calculating your theoretical extruder steps/mm for a Wade's style extruder. |

| **windchill_38.zip** | 1k | 11-11-01 | | **Wind Chill** This program will compute the windchill using the formula that the NOAA uses. The user inputs the temperature in F and the wind speed in mph, the program outputs the windchill. Enjoy! |

| **windchill.zip** | 1k | 03-03-09 | | **WindChill** WindChill is a program that lets the user enter the temperature in degrees fahrenheit and the wind speed in miles per hour and calculate the wind chill factor. The formula gives unreasonable answers to unreasonable temperatures and unreasonable wind speeds that would not be associated with the wind chill factor. However the formula works very well with reasonable temperatures and reasonable wind speed that would normally be associated with the wind chill factor. The formula used is also the new wind chill formula adopted in meteorology in November 2001! |

| **windchil.zip** | 1k | 00-02-19 | | **WindChill** Just like the title says, find the windchill. |