Type /math 5+5 and you will see:
5+5 = 10
Type /math 2*8+5 and you will see:
2*8+5 = 21
Type /math 3*5+2-10^3 and you will see:
3*5+2-10^3 = -983
This works for adding, subtracting, multiplying, dividing, brackets, exponents, and just general equations. This version is being released without an interface - it's just the slash command /math <equation>. When there are ways to do some of the cooler text entry boxes in frames, I'll be able to go ahead and update this to be more user friendly. It should be able to do some math at this point. If there are any errors, please email [email protected].