has released Symbolic v1.0 for the TI-83+. This application enables the user to symbolically differentiate and simplify expressions by adding new tokens to the current operating system. Other functions this application installs are reciprocal trig and arclength. These tokens can be used anywhere on the calculator from the Homescreen to BASIC programs.
You can download Symbolic v1.0 from the Symbolic Homepage
12/15/01 Update: Version 1.1 has been released. This fixes a problem with adding fractions.
12/16/01 Update: Version 1.2 has been released. This fixes a problem with the uninstaller..
12/21/01 Update: Versions 1.3 and 1.4 have been released. See the new Version History
section of the Symbolic Homepage for details. Also added an External Software
12/27/01 Update: Version 1.5 has been released. See the Version History section for details of the changes.