The new Office OneNote 2007 has a built-in Calculator, really nice stuff!

To try it out, just write a mathematic formula in a page and end with an equals sign followed by enter or space, for example:3+2=This will result in a row like this:3+2=5

It is quite powerful, it can handle operations like:

**+**,**-**,**/**,*****- parenthesis so you can do formulas like this (3+3)*3=18
**^**, for example 10^3=1 000**sqrt(**for square root*n*)**sin(***n*), asin(*n*), cos(*n*), acos(*n*), tan(*n*), atan(*n*)**mod**for modulus

And I’m sure there are more…