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Numerical Analysis Information on the Web

Guide to Available Mathematical
Software
Netlib: a collection of mathematical software, papers, and databases
Math Forum Internet Mathematics Library
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General Matlab Resources on the Web

Matlab Tutorial by Mark Gockenbach
Matlab at the University of Indiana
Matlab introduction from the University of Utah
Matlab at MIT
The MathWorks
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Matlab PDE Toolbox Resources on the Web

The MathWorks PDE Toolbox
Using the Matlab PDE Toolbox Indiana University Stat/Math Center
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Octave

GNU Octave is a high-level language,
primarily intended for numerical computations. It is freely
redistributable software.
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freeFEM

freeFEM is an
implementation of a language dedicated to the finite element method. It
enables you to solve Partial Differential Equations easily.
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FEniCS Project

FEniCS Project is
free software for automated solution of differential equations. Software tools
for working with computational meshes, finite element variational formulations
of PDEs, ODE solvers, and linear algebra are provided.