I finally got around to posting my collection of trig formulas (handy for pre-calc). You can find them here:

Pre-Calc Trig Formulas (TI-89 text file) – or – PC text version – You’ll need to use a TI font (such as TI-92 Mini Sans) to view on your PC. But in theory, may transfer over without problems on to other TIs (such as TI-85,83,82,etc). Just copy the text (with all the goofy characters) over to the TI GraphLink Program Editor and save it as a program (it won’t run so you’ll need to go to Program Edit on your calculator)