Benamou, Jean-David

Author of GROLAB, a MATLAB GUI for easy interactive Ray Tracing in 2-D.
http://www-rocq.inria.fr/~benamou/

Polking, John C.

Author of "Ordinary Differential Equations using MATLAB". His page also has a small collection of useful educational programs available for download.
http://math.rice.edu/~polking/

Higham, Nick

Manchester Centre for Computational Mathematics. Research Interests: Numerical linear algebra; Numerical analysis; Scientific computation. Author, with Desmond J. Higham, of MATLAB Guide (SIAM, August 2000).
http://www.ma.man.ac.uk/~higham/

Nilsen, Jan Even Øie

Geophysical Institute, UiB. Lists routines for downloading.
http://www.gfi.uib.no/~even/matlab.html

Alsberg, Bjørn K.

Author of the VRML Molecule Toolbox, the Gaussian Toolbox, the MORPHY Toolbox, the HTML Toolbox, and the LaTeX Toolbox.
http://pcf1.chembio.ntnu.no/~bka/

Portegies Zwart, Joris

Includes a tutorial on using the Neural Network Toolbox and a function for sending email directly from MATLAB.
http://carol.wins.uva.nl/~portegie/

Acklam, Peter J.

Author of the PNM Toolbox and other utilities.
http://home.online.no/~pjacklam/matlab/

Drasco, Steve

MATLAB applied to human powered vehicles, radon, hamiltonian integrators, string theory, and gravity waves.
http://baba.astro.cornell.edu/research/matlab.html