What are the best TI calculator applications?

Question

I just purchased a TI-89, and was wondering if there were any "essential" apps I should get. I will be using it for college algebra, then trig, then possibly various calculii if I wind up going with electrical engineering.

Any suggestions?

Answer 1

you just bought an expensive calculator with more than enough applications which will help you breeze through any math problem... don't worry about other external apps