Heaven knows I don't need another graphing software or mathematical package. But still, when I came across this, I thought that this might be very useful to students, especially those in high school or early undergraduate years. I know that there's probably several freeware or shareware mathematics packages that one can afford without paying the hundreds (or thousands) of dollars for the high-powered mathematics packages. Still, this might be "free" enough that it is interesting.
It appears that Version 4 of Microsoft Mathematics is available for download. A brief description of it can be found here. I haven't used it before, and before I recommend it to people I know who might need it, does anyone else have a review of this or an earlier version of it? And if you have used it for physics purposes, I would like to hear your opinion even more.