So, I had to get a second calculator for AP chem (It's my teacher's policy), and it can only be scientific, so I chose the most advanced one I could, the TI-36x PRO. I love the thing so far. I also have my trusty Nspire-CX. One thing I noticied, is the 36x is far from being a CAS of course, yet it gives exact answers. Let's say I did 20pi/5, it would give me 4pi. If I do sqrt(27) it gives me 3sqrt(3). These are things my nspire cx can't do. WHy do you do this Ti? I guess I'll be using both calcs from now on...