Did some with Java, mostly messing around and getting used to the interface, and some math, as I got done with it a year before you're supposed to, so I've forgotten some of it, and did... I think I started with simple integrals. So far, mostly videos, few exercises, though.
Hello, I was wondering: how many of you are doing khanacademy?
Right now, I am about 2 weeks away from completing khanacademy altogether. 334 out of 380 concepts are completed, assuming that the KA team don't add any new content during the time period.
Are you guys brushing up your math on KA, and if so what's your progress?