A didactic 2D & 3D graphing calculator, equation solving, and useful tools

Microsoft Mathematics
Free
Offline
http://www.microsoft.com/en-us/download/details.aspx?id=15702

Microsoft Mathematics is a free math software for your computer. With the help of this freeware math students can solve complex math problems easily. It basically helps math students to solve problems in algebra. Apart from that you can also draw 3D and 2D images with the help of this utility. The main objective of this freeware is to teach students the basic of math, physics and chemistry.