Equalculator is an equation calculator. It is currently in the "pre-alpha" stage of development, so don't expect it to do miracles. You type in your equation, it will ask you for the variables and Voila!, it gives you the answer.
The dream of Leibniz. A project devoted to realising the lingua characteristica and calculus ratiocinator using XML technologies where appropriate. Includes (at this stage mainly consists of) research in philosophy and logic.