I'm taking Physics, Chemistry, Algebra 2, and Trigonometry all at the same time this year (Yah I'm insane, just to clear that up) and I'm looking for an application that would allow me to take notes in these classes and compute the equations I'm dealing with. I was looking at MS office because has handy dandy little tool to write out equations, but not compute them. And then copy over to excel to compute. Is this an ok system? I use excel and am comfortable with it, but can handle it something like Physics' or Trigonometry equations, or calculus/statistics (what ever the hell else I take) for next year and years to come? I can pick up a copy of Maple or Mathematica for about the same price. I'm leaning towards Maple because it looks real nice and also because of the licensing horror stories I've heard from Mathematica users.