[free] A GUI (Graphical User Interface) that integrates MATLAB's eigs routine (ARPACK) for finding a few eigenvalues of a large sparse matrix with the (now obsolete) Pseudospectra GUI for computing pseudospectra of matrices.
http://web.comlab.ox.ac.uk/projects/pseudospectra/eigtool/
An open and interactive VR solution for MATLAB and Simulink.
http://www.mathworks.com/products/virtualreality/
A tutorial for learning Geometric Algebra, aimed at the sophomore college level.
http://www.cgl.uwaterloo.ca/~smann/GABLE/
[free] Tools to read, write, and process SEGY data with MATLAB.
http://rubble.phys.ualberta.ca/~sacchi/SEISMIC_LAB/
Read and write SEGY data.
http://segymat.sourceforge.net/
A small spectrum-analyzer like plotter for MATLAB. Using this function on a time signal has the feel of plugging in a spectrum analyzer.
http://www.billauer.co.il/easyspec.html
Users of the software package MATLAB may share tips and advice at the comp.soft-sys.matlab discussion list.
http://mathforum.org/epigone/comp.soft-sys.matlab/
A tutorial on how to construct custom neural networks starting from an empty network object.
http://carol.wins.uva.nl/~portegie/matlab/nnt/