Derive
Derive
http://education.ti.com/us/product/software/derive/features/features.html
Maple
Maplesoft is a world leader in mathematical and analytical software. the maple system embodies advanced technology such as symbolic computation, infinite precision numerics, innovative web connectivity and a powerful 4gl language for solving a wide range of mathematical problems encountered in modeling and simulation.
http://www.maplesoft.com
Mathcad
Mathcad
http://www.mathcad.com
Mathematica
Wolfram research, makers of mathematica, the only fully integrated technical computing software
http://www.wolfram.com
Mathematica Notebooks
Mathematica Notebooks
http://library.wolfram.com/infocenter
Matlab
The mathworks is the world‘s leading developer of technical computing software for engineers and scientists in industry, government, and education.
http://www.mathworks.com
Online Function Plotter
Free math lessons and math homework help from basic math to algebra, geometry and beyond. students, teachers, parents, and everyone can find solutions to their math problems instantly.
http://www.math.com/students/graphing.html
Online Matrix Calculator
Computes determinant, inverse, eigenvectors,... this is the main site of wims (www interactive multipurpose server): interactive exercises, online calculators and plotters, mathematical recreation and games
http://wims.unice.fr/wims/wims.cgi?lang=en&module=tool%2Flinear%2Fmatrix.en&cmd=new
Online Scientific Calculator
Free math lessons and math homework help from basic math to algebra, geometry and beyond. students, teachers, parents, and everyone can find solutions to their math problems instantly.
http://www.math.com/students/calculators/source/scientific.htm