You can right-Click and Save the TI files so you don't have to type them in yourself. You'll need to get the free TI Connect Software from education.ti.com.
My calculator recommendations are here
St Francis Picture
Store as Pic1 and use in the StartUp App
to see it everytime you turn on your Calculator
This is a handy progrma for doing Gaussian Elimiation
with the TI-83 or 84
Makes a function to curve a test. Input the before and after grades for two, and it stores the linear function in Y1
Use the TABLE or the GRAPH to see the transformation for any score.
Simplifies a radical
Law of Sines and Cosines
The TI-82 does not have an InvNorm function, so this will do the trick:
A Handy Menu program for Normal curve stuff from your TI-83 or TI-84
Click here for more info.
Here is a Zip file with all the programs described at here