Check out Microsoft Mathematics: http://www.microsoft.com/downloads/en/details.aspx?FamilyID=9caca722-5235-401c-8d3f-9e242b794c3a [4]
Microsoft Mathematics provides a graphing calculator that plots in 2D and 3D, step-by-step equation solving, and useful tools to help students with math and science studies.
Microsoft Mathematics can help you with many tasks, including:
Source: http://www.ghacks.net/2011/01/17/microsoft-mathematics-now-free-perfect-tool-for-math-science-buffs/ [6]
Links:
[1] http://pulse.veltsos.com/category/it/mathematics
[2] http://pulse.veltsos.com/category/it/software/software/os/microsoft
[3] http://pulse.veltsos.com/category/it/software
[4] http://www.microsoft.com/downloads/en/details.aspx?FamilyID=9caca722-5235-401c-8d3f-9e242b794c3a
[5] http://linux.philosweb.com/drupal/system/files/microsoft-mathematics-550x434_2.jpg
[6] http://www.ghacks.net/2011/01/17/microsoft-mathematics-now-free-perfect-tool-for-math-science-buffs/