SDK
Software Development Kits (SDK) are available for many TI Graphing Calculators.
TI-83 Plus / TI-84 Plus / TI-73 Explorer SDK
Tools for developing applications for the TI-83 Plus Family, TI-84 Plus Family and TI-73 Explorer .
Details
Download
TI-89 / TI-92 Plus SDK
Tools for developing applications for the TI-89, TI-89 Titanium, Voyage 200 and TI-92 Plus
Details
Download