I spent about 10 minutes reviewing it. It seemed to have a lot of valuable math applications ready to go for you, for all types of math levels ranging from root finding to vector plotting; no idea what these things are, of course. I think it'd be useful for teachers in classrooms who can use it to enhance student learning who are visual learners. The tools are there, for ex. to manipulate a curve at the press of a button so the student sees the concept relating to the visual.