If you use Word or OneNote, you know that there is an equation formatter and that MS Word supports LATEX, but did you know that there is a free add-in for Word and OneNote that does graphing and solves complex equations?  And I mean complex in both the imaginary number system as well as complicated equations.

 

http://www.microsoft.com/download/en/confirmation.aspx?id=17786 (this is the download)

If you are have access to Dreamspark Premier you can get OneNote at no cost to you  or your school.

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When you have the Math Add-in installed and you will see the Mathematics add-in on OneNote, this is similar to the use of Word.

Once you write the equation using the Equation editor, you plot both sides (with a simple equation) and here you go:

 

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