Hi, first I wanted to apologise if I post this in a wrong thread. I need help in choosing which graphing calculator that I should buy. Personally, I have been using casio calculators all my life, and I have tried using TIs before but I'm just not used to it. However, since I'm already in university now I have to upgrade from my scientific calculator to a graphing calculator. So I was wondering which one is better, casio FX-9860GII or Ti-89 for an engineering student (I'm in electrical engineering major). Also, I'm sure there'll be difference between those 2, so I'm wondering if there's a vast difference between them? Because I'm sure that TI 89 is a good calculator since almost everyone uses TI. but I'm not too sure about casio FX-9860GII. Any help would be greatly appreciated. Thanks!