Post your ideas for new math programs here, or build on ideas posted by other visitors.

i want to make an equation solver to solve just any old equation with up to 3 variables but i havnt got a clue how

simply use the command "prompt" or "input" to ask for values. For example, // :input n// would ask for the value of n in this format when the program is run //n?// then you can type the value for var n. do not judge my sample program i am a fricking 12 year old kid
*SAMPLE PROGRAM*
:clrhome //this clears the screen
:input N //this asks for N
:input M //this asks for M
:input Y //this asks for Y
:disp 3*Y/M-4N //this solves the made up equation
:pause //this waits for you to hit enter
:end //this ends the program

hope this helps, if not contact me at calculatorprog@gmail.com

i want to make an equation solver to solve just any old equation with up to 3 variables but i havnt got a clue how

i want to make an equation solver to solve just any old equation with up to 3 variables but i havnt got a clue how

just use a matrix and rref...

i think it is possable to make a program that will archive and unarchive all of the other programs but i dont know how

that is not possible in BASIC. However, you could download prgmCODEX and then write a BASIC program that is only "U[programname]": Asm(prgmCODEX) or "A[programname]": Asm(prgmCODEX)

Calculator: TI84 Plus Silver Edition
I tried the following;
Predefine Y1=Z+1
Y1(5) returns 6
Y1(i) failed.
So, my question is how to pass a complex number to a predefined function, if possible on this calculator.

Thanks,

Guang

i need an program asap that can caculate board foot for prices i run an ti 84+ calc. I need the width length width and price things you can change every time don't care which language you use but it would make woodshop easyer thanks

A New program I created. Guarenteed to work If you follow the programming correctly. It works the pythagorean Theorem, which Is fairly easy, but this is my first program. Enjoy!

:Disp "Sides A,B,C"
:Disp "C is Hypotenuse"
:Disp "Unknown=U"
:Prompt A,B,C
:If A=U
:Then
:(B^2)-(C^2)->Z
:If
:Z<0
:Then
:(C^2)-(B^2)->Z
:Then
:SqRoot(Z)->Z
:Disp Z
:End
:If C=U
:Then
:(A^2)+(B^2)->X
:SqRoot(x)->X
:Disp X
:End
:If B=U
:Then
:(A^2)-(C^2)->Y
:If Y<0
:Then
:(C^2)-(A^2)->Y
:SqRoot(Y)->Y
:Disp Y
:End

Are there any programs for linear combonation of 3 varibles with out using the matrix thanks.

Im Looking for a program that can calculate the maximum volume of a box with a lid and without a lid. Can someone help me!

How do I make a program for finding critical points, inflection, and concavity on the TI-84 calculator?

This isn't easily accomplished. Use squeeze theorem and the mean value theorem.

Ok so I'm pretty new to programming calculators, and so all my programs will be in what i think is called BASIC.Also they will be on a TI-83, because I'm using my school-issue calculator.

Here's my first program

Ok so here's a cool trick for people who are having trouble with formulas, its kind of cheating but not really

ok since i'm using the quadratic formula i'll be subtituting the square root symbol with this thingy-> ^
Don't do it on ur calc, actually put the square root symbol

Ok so here's how it shouldd look
:Prompt A
:Prompt B
:Prompt C
:Disp -B+^(B2-4AC)/2A
:Disp -B-^(B2-4AC)/2A
Stop

For other equations Substitute the variables for watever the formula calls for. And sub the formulas.

Hi, Pls I need an urgent help. I have been given an assignment to write a program using the TI 84 calculator to calculate interest on loan.
For example, Mr B. borrowed £10,000.00 fron a bank an an annual interest of 12%. I have been asked to program his repayment every month and how long it will take him to pay off his loan.

Pls, help!!!!!!!!!!!!!!!

get me the formula (preferably through email and I could make this program for you

chisoxguy7

chisoxguy7@yahoo.com

I also just remembered that you can only have one unknown variable. So either you have to solve for the number of years at a given payment or the given payment for a number of years

Yeah i have the program, but I typed it in and submitted and then my internet froze. So If you (anyone) are interested in this program email me. I will also take any program requests.

chisoxguy7@yahoo.com is my email

This might work, I havn't tested it thoguh

Input "Total $",A (This would be 10,000)
Input "Years Needed", B
1->X
Lbl A
If X =/= B
A x .12->C
A+C->A
X+1->X
Goto A
Else : A/B->G
ClrHome
Disp "Annual Payment of"
Disp G,"Dollars"
Disp "Over",B,"Years"

Bleh, nope, I'll look at it again

!#)%(&@#)*%& I forgot a then after the if. That should do it