Last week I had two tests: multivariate calculus (A) and physics (ungraded). I also registered for the summer term: CHEM111, a precursor to the required CHEM105 monster; ENGR297, which is more MATLAB; and DESN103, intro to AutoCAD, which isn't required but I want to learn to use.
This term's physics course mainly addresses electricity. While I have worked with MultiSIM and PSPICE, I have been making more use of iCircuit, which does similar things on the Mac. In particular, I appreciate its constant animation of current and voltage flow, which are indicated with animation and color indicating direction and magnitude. Very nice!
I now have the iOS version of iCircuit as well. My iPod's tiny screen is rather limiting, but the program still does many things.