It includes an archiver application. I consider it the most advanced math program ever created for any calculator. This small program can solve advanced math problems that could give even an advanced math programs on a PC a nice headache. Compressed in .zip format . Compressed in .rar format.
Differential equations can be of any order and complexity.
This package does also contain functions for Laplace-transformation. The difference from the program above is that Advanced Laplace has more advanced Laplace capabilities. Written in TI Basic to run in TI-89. Compressed in .zip format. A function to graph the output.