Previous TI-89 Calculator Projects

During my high school days I worked on two programs that I eventually put on the internet.  The biggest of these was a program that listed every equation that my physics teacher gave me my senior year during AP Physics.  I checked today and this program has been downloaded 9100 times from the website link below.  This program show these equations from a menu of subject categories and shows the equations in a "pretty print" format, which means that the equations look like what you would write on a sheet of paper when writing them down as opposed to writing them out in a one-dimensional sentence from.  For example:
          Sentence form                     Pretty Print form
          a=b^2/c                                   b²
                                                    a=----
                                                         c
This is a crude estimate, but you get the idea.  You can find information about these programs here: My author profile.
Here is a link to the page for the physics program: APPhysics