Hello Everyone. I'm returning to college to earn a degree in physics 15 years after getting a BA in English. I took calculus almost 20 years ago and used a Ti 85. I've noticed that some graphing calculators have CAS integrated, which I've never used, and I'm keen to get one for my physics and math courses. I've also heard some amazing things about mathematica, about which I know almost nothing except that it's an obviously vastly more powerful tool than a CAS graphing calculator. My question is this: is there any reason for someone to own mathematica instead of a CAS calculator if the goal is to do nothing higher than undergraduate work in physics/math and to eventually be a math and/or physics high school teacher? I appreciate your help and insights. Thanks.