Ed's Matlab Help Page

My contributions:

Very brief intro to Matlab

Matrices in Matlab: Basic

Matrices in Matlab: Advanced

Printing and plotting polynomials

A nowhere differentiable function

Neville's algorithm: nev.m

Found on the web:

Matlab documentation page from Mathworks

Cambridge engineering Matlab page

"MATLAB Educational Sites" at U. of Maine

Southern Illinois U. tutorial page

MathWorks (the creators of Matlab)
Octave is an approximate, and for me uncertain, Matlab clone for Unix. It is freeware.