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For those interested, I have released a somewhat powerful [beta] computer algebra system for the 86. So far, +, -, *, /, ^, ln, and log functions are fully supported with an experimental sine function. Of course, without a full compliment of trig and hyperbolic functions, it is not as powerful as the other functions. Look for a full trig/hyberbolic release soon and elementary Calculus, e.g. symbolic differentiation, conservative limits, etc. shortly thereafter. The 2.2 version is posted, but will require a separate download for the updated frontend [minor bug fix]. I appologize for the inconvenience. Check it out.

Where is it? I looked in the TI-86 Math and couldn't find it.

Never mind. I found it in the BASIC math progs.

Where is the updated frontend?

Tonight I have uploaded my program to solve simultaneous equations. It is only 418 bytes and can theoretically solve for infinite variables. Yes, I realize that there is a built in solver for this in the calculator, but you can't quite get there from any shells that I know of. Check it out,

-matt

Cool

You can't get to the TI-OS simultaneous equation solver directly from a shell, but you can exit the shell and then go into it. If that takes too long, might even be possible to make a "shortcut" program that calls the simultaneous equation solver code in the ROM.

I am creating a good math program

its called Aalpha


Give me some ideas
thanks

We need to know what it does before telling you what you should add.

i am finishing a 3d grapher in ti86-basic
check my site for updates
if anyone is doing a 3d grapher in asm, tell me!

I didn't write one myself, but I found an assembly 3d-grapher, called graph3d, on ticalc.org.

I'm working on a math program in assembly for TI-86. I don't know how to do opertations(addition, subtraction, multiplication,....etc.) can someone help me?????

Bradford5

To add two numbers in asm you have to first load at east one of them into the a register and the otehr into any other single letter register. This is for small numbers. Larger ones use paired registers and the first one would then have to be hl. then you use the code:

add a,b

this adds a and b and stores the result in a

sub a,b

subtracts b from a and stores the result to a

if you dont know what registers are there is a great tutorial on this site and many others all over the internet. http://www.asm86.cwc.net has a good one.

If you want to do math with floating point numbers, there are ROM calls that will do those for you. The equates are in ti86math.inc. You'll need to move the numbers into the OP memory locations. Look at a programming tutorial or something if you don't understand this.

I have completed a program in the basic language called AllMath so far it has these categories:
Algebra:
Ratios
Simplify Radicals
Factor Trinomials (still has a few bugs)
Coordinate Info
Quadratic Solver
Simultaneous Linear Equations
Prime Factors

Geometry:
Surface Area/Lateral Area/Volume/Area of everything
Sectors/Arcs
Regular N-Gon area and perimeter
(uses side,radius, or apothem to find both)
Regular N-Gon angles and # of diagonals

I am working on version 1 of the ASM one and i will be fixing the trinomial factoring in version 2. Currently the BASIC version uses 10.7k Its pretty big and im hoping the asm can shorten it a little (well a lot.) Does anyone have any ideas on what else would be very useful?

Trig identities might be good too.

I'm coming up with a new and improved Calculus Toolkit.

Here's what it'll do:

The program will feature a tangent line finder (of both explicit and implicit functions), Newton’s method of solving equations and finding zeros, Riemann sums (left-hand sums, right-hand sums, and trapezoid, midpoint, and Simpson’s method plus the option to compute the actual area), differentiate rational functions, analyzing polynomials (find their integrals, derivatives, critical points, and more), Taylor series, find centroid, point analyzer (calculus info of a specific point, including first derivative, second derivative, critical point info, and the tangent line), and a limit finder.

Nice huh?

Alas, methinks it'll get less downloads than the much inferior “Calculus Cheater”

I'm writing an assembly program that solves for almost all common geometric formulas, contains a library of them, and also has some utilities. It will come in about 23 programs, one for each formula, and a menu system. I've already got a basic version of this, which I've uploaded about a month ago. (Hasn't appeared yet). The name of this will be Util, version 3.0.

I'm not going to finish this prog. I'm instead working on CMath, an assembly program in multiple modules with info on most areas of math.

I'm writing an assembly "pretty print" program for the TI-86. I'm almost done writing the code, but because of the complexity, debugging will be almost impossible, so I'll need help. If you're interested in helping with debugging, please e-mail me at straney@umbi.umd.edu.

Never mind. I've got debuggers.