# ti84+ programs

Moderator
You can use TIconnect to transfer .8xp files to your calculator:

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Moderator
YOURIQ
This is a math-quiz program where you are faced with rather difficult math questions, good luck trying to solve these. With effort a high-school student should be able to beat this quiz. There is one hard integral in the quiz but there are ways to cheat making that question a lot easier.

You will get a nice reward for finishing the game, you can save that as a screenshot.

Moderator
A0TOMATH
This is a somewhat useful program that consist of a collection of auto-solvers. You push a buttom with green letter to select the solver you need

A: calculate A!

B: calculate A!/B!

The issue with using the built in factorial calculator is that it is limited to 69.5! and below (due to TI84+ giving an error message if any anser is bigger than 10^100, this is for aesthetic reasons only).

One current limitation is that it doesn't work for negative numbers so it's not the complete gamma-function, still better than the built-in factorial that is limited to half-integers

C: solve a second order equation

The roots will be given as the calculator variables (X, Y).

D: solve a cubic equation

The roots will be given as the calculator variables (X, Y, Z).

E: solve a forth order equation

The roots will be given as the calculator variables (X, Y, Z, θ).

F to N solves for a triangle where 3 is known (area, angles, sides)

O: this will calculate the number of permutations for arbitrary number of object types.

If you input (3,4,5,6,0) it will calculate (3+4+5+6)! / 3! / 4! / 5! / 6!

If you input (3,4,5,-30) it will calculate 30! / 3! / 4! / 5! / 18!