CrunchKey

CrunchKey is a simple text calculator that works with a press of a key, and gives your answer INSTANTLY. Built with both developers and users in mind, It strives to be a calculator that will save time editing, solving, and calculating any number crunching. Simply enter a statement and have you answer shown to you real time as it is entered.

Crunchkey supports:

Parantheses, Exponents, Roots (Nth Rooths), Multiplication, Division, Modulo (Remainders), Additon, and Subtraction

And CrunchKey offers a Key so it can be understood at a glance.