Parse | Let's you control what the user typed in at the command line. |
Form | Get access to the all answers right before they're displayed. |
Exec | Mess with the two variables being calculated. |
Expr | Gives you control over the equation numbers right before they're printed on the graph screen when graphing. |
Home | Run your own routine right before the calculator returns to the homescreen. |
CmdTok | Executed right before any TI-BASIC functions (DelVar, Asm, Bin, etc.) are run. |
Key | Probably the most popular, have the calculator run your program every time _Getkey is called. |
Grf | Implement your own routine right before graphing functions. |