I spent roughly an hour reviewing this site. This site contained a few items that I would deemed useful for a student. Some of the applets were beneficial. Like the Sin box and Cos box. However i found most of the applets relatively confusing making the useless. I would highly recomend giving a much more indepth description of the applets and thus makeing them clearer and more understandable. I highly do not suggest first time users to go to this site.