Hi, I was wondering if you suggest to use such softwares to handle complicated calculations during your studying. Generally the exercise given by my professors can be handled with pen and paper, but I often run into "complicated" problems in textbooks that require some heavy calculations. For example, when you solve a differential equation or an integral you may have to spend a great amount of time to make the solution "nice and beautiful" so that you can deduce physical insights on the problem more easily. It is not that I'm lazy (because up until now I did everything I can on paper), but, sometimes, a little help with the math could save me a lot of time (and stress! ). Again, I like math, it is just to speed things up a little.