SpeedCrunch is a light weight, fast, precision scientific calculator released under GPL.

SpeedCrunch is a light weight, fast, precision scientific calculator released under GPL. The first time I ran this calculator on my machine, I found its interface rather queer; considering I was used to the traditional view of a calculator. SpeedCrunch has a large text area (Output) which displays the result of the calculation and a small text field (Input) right below it in which the user can type commands. Talking of commands, there are a whole lot of stock commands available.