Mathematical Tools

Get flash to fully experience Pearltrees

Unit Conversions

Wolfram Research

Wolfram MathWorld: The Web's Most Extensive Mathematics Resource

http://mathworld.wolfram.com/

UnitsConverter.net - Convert Common Engineering Units in One Click

Online converter

Linear Equation Solver

Notice that each row represents one equation.

http://mac6.ma.psu.edu/lin_equations/index.html