I figured this would be the place to find somebody who's used the TI-89 . . at least I hope so.
I'm doing a chemistry assignment, and I've a problem. I'm supposed to find the natural antilogarithm (at least that's what I think I'm doing) of a number . . I've done a ton of calculations and this is the last step, I'm so frustrated to be sooo close.
Basically . . I need to figure out how to use my TI-89 to find out what e^(-somenumber) is. Oh, yeah, and it's due in the morning. :D