<p>I just need some of the trig ones that I might forget once the stress of the test sets in. I know that you can program in like executable programs, but I don't want that... I just basically need a little memo area. Does anyone know how to do that on a TI-83 plus? THANK YOU!!!!!</p>
<p>yea, go to draw and type what u want. draw is under 2nd PRGM.
Then scroll down to text.
Make sure you click on graph, and then start the process.</p>
<p>THANK YOU SO MUCH!!!!!!!!! The only problem is that doesn't really give much room! Is there anywhere else that I can freely type in formulas?</p>
<p>There are some premades with the trig identities and other tricky formulas at ticalc.org that you can just download into your calculator. You probably have to dig around a little bit, but it's pretty easy to navigate.</p>
<p>Just write a program and instead of executing it, edit it when you need to look at whatever formula.</p>