Maxima

Maxima screenshots

It is a system for the manipulation of symbolic and numerical expressions
Main Interface
Maxima 5.3 : Main Interface

Alternative downloads

Symbolic Tools
It can augment the numeric and graphical capabilities of GAUSS.
1.1.6
DerivativeCalculatorReal27
This calculator calculates derivative functions of high orders.
1.0.0.8
MaximaPHP: Maxima online for symbolic and numerical maths
Web based PHP interface to communicate to Maxima computer algebra system.
0.1.3
FREE