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

This may not even be doable, and if so, ok, but it would he REALLY nice if the TI-89 solver program incorporated into the OS could be re-written as a standalone program for the 86/85. I know that the 89 has far greater power than the 86, but even a slow TI-89 solver would be nice on the 86.

I'm in an algebra 2 class, and I'm trying to make a conic equation solver/grapher (parabola, circle, ellipse, hyperbola). Can anybody give me hints of how to make it? It's getting really confusing.
I'm an amateur, 13-year old basic programmer that started a few months ago. I have a TI-89 Titanium.
Thx.

solver: it's built in to your calculator. For example:

solve(6=2*4x^2+4x-3,x)

Put in any one-variable equation, and the variable that you used, and it'll spit out the answer for you. Exact, too.
Or you can say solve(y=2x,x) and it will say x=y/2

grapher: (sorry I forgot)

after you've solved for y using the solve() function, you can type that into the y= menu, and it will graph it for you.

Can anybody make a FAST program for graphing conic equations? I've downloaded "draw.zip" but it was really slow because it was written in BASIC. If the program can graph inequalities, that'd be great (like shading automatically and stuff). It'd be a savior in my algebra 2 class.

Hi! I need a program to my TI-84 plus to solve simultaneous equations. thanks

for linear equasions you can use rref.

I have been looking for "apps" to run so when I use my ti-84plus silver at work it'll add feet and inches at the same time.

For example if I want to add 8'-2" + 2'2" it would result 10'-4", since I already have a programmable calc it's not feasable to buy another $50 calc for just this function. I just want an easy way to do these kind of functions. It would be nice if the app did addition, subtraction,multiplication and division and would also figure the Area and Volume so when I enter the length, width and height of a room it would still be in "feet-inches" any help would be appreciated

Easy--feet in L1, inches in L2. Once you've added everything in L2, divide by 12. The ipart gets added to the total of L1, and the fpart is put into the sum of L2. Then output the two sums.

Hi all. :)

I'm planning to submit more of the programs I've written over the years that I think might be useful, but my problem is that 1) release-wise, they're only as good as beta; and 2) I have been a bit of a lazy bum to write docu. However, I have done some pre-releases at the United-TI forums, and I wish to call your attention to those posts of mine. I really want to hear feedback on the programs to see if they're worth releasing.

Some of them are:

-a general polynomial root finder

-a more robust decimal to fraction converter (similar to the Rationalize[] function in Mathematica)

-Bernoulli numbers

-programs for computing the constants of Catalan and Euler-Mascheroni

-Gamma function (a.k.a. the generalized factorial)

-Lambert W function

(apparently, I can't embed URL's, so just search for them at United-TI)

Reply either here or on the United-TI forums. Don't e-mail 'cause I don't check that frequently. :P

Over and out. :)

thornahawk

I need a great college algebra program for the TI-89. please! I have download a few programs and I always get the 'too many augments' win. please please help

I need a list of everything in algebra and geometry for my "beta" program. I have a lot of items but I think I am missing some things.

i would need a program for the ti92 to solve equalizations just similar to that one on the ti92+. if anyone knows one or is able to write one i would be very thankfull (programm should be basic or fargo II)

I think that I could help you, but I am not sure on what do you mean with "equializations"...Explain yourself a litle more on what do you want...

i ment equations (sorry my english isn't that good)
i hope it's clear now

Is it possible to make a program that use Pascals Triangle to do exponents of Binomials? Such as (X-5)^3
Any thoughts?

Yes.
Put pascal's triangle into L1, using a simple while loop. Then use the binomial root therom inside a new while loop. Output all coefficients into L2, and the degrees of the x term into L3.
What calc? I can post the source code.

how can i make it so that people canot edit my programs if i give them away
(like games have)

I was working in a program for to do easy and fast tue evaluation of a formula, but I had the "auto alpha look on" problem, because in this program generally the request variable is a number; but to solve it is very easy, only have to do it in the "Request": Request string,var,0 and no problen the alpha is off. This is in basic.

Can some one tell me how to display a graph but only half of the and the other half of the screen is like the home screen in wich you can input data.

Go to the catalog, press H and then select Horiz.
That should do it unless I am mistaken

Scratch that, goto mode and scroll to the bottom where it says Full Horiz G-T. Select Horiz. You can also view a vertical split with graph and table by pressing G-T