Euler's Method on the TI-83? Put the '92 to shame!

How about a program that shows a projectile's path. Of course, a parabola is not all that interesting. Try jazzing it up with the x-y coordinates being displayed as the projectile moves... that is, the coordinates moving with the projectile.

Every calculus textbook shows the graphs of sine(x) and the first few Taylor series approximating functions. Use only "y=", and users can quickly see what adding the next term to the approximating function does. Writing a program here could help with the speed of the graphing.

Use the calculator as a simulator. Roll dice with it. Count the number of 7's that turn up in the simulation. Roll them 10 or 100 times.

In AP Statistics, show students that there is an Inverse t-Distribution Option on the calculator.