Semidefinite programming (and determinant maximization) solver.
MAXDET is freely distributed and is available from http://www.stanford.edu/~boyd/MAXDET.html.
MAXDET is invoked with sdpsettings('solver','maxdet').
Updated source-code and binaries for MATLAB 6 and 7 can be found at http://control.ee.ethz.ch/~johanl/maxdet.zip.
Note that pure determinant maximization problems now can be solved using any SDP solver in YALMIP, hence MAXDET is no longer necessary.
Alternatively, SDPT3 4.0 also support logarithmic determinants in the objective and is a recommended alternative.