7math is a program designed to solve equations. This Freeware is very usefull
This freeware have any features, there are:
Find roots;
Draw graph;
Find extremes;
Find local maximum/minimum.
Calculate integral;
Save results to text & html.
This software from http://www.persianthought.com/math.html
You must have Microsoft .NET FrameWork 2 before install it.
Supported Operating Systems
* Windows 2000 (Service pack 4 required)
* Windows XP (Service pack 2)
* Windows Server 2003
* Windows Vista
* Windows 7