Nerdamer
a symbolic math expression evaluator for javascript
Nerdamer is a small and light-weight symbolic math expression evaluator written in JavaScript. The parsing is done purely in JavaScript and uses no server-side program whatsoever. It can export to a pure javascript function, ideal for filtering user input. Nerdamer is modular so you only need to load the parts you need. Because of this and its small footprint, it can easily be embedded into your applications.