Undocumented Matlab MEX API
Matlab's MEX API contains numerous undocumented functions, that can be extremely useful.
Performance
Math libraries version info & upgrade
Matlab exposes undocumented info about its internal math libraries; these libraries can be upgraded manually.
Improving save performance
There are many different ways of improving Matlab's standard save function performance.
Improving fwrite performance
Standard file writing performance can be improved in Matlab in surprising ways.
Parsing mlint (Code Analyzer) output
The Matlab Code Analyzer (mlint) has a lot of undocumented functionality just waiting to be used.
Handle Graphics Behavior
HG behaviors are an important aspect of Matlab graphics that enable custom control of handle functionality.
Solving a Matlab hang problem
A very common Matlab hang is apparently due to an internal timing problem that can easily be solved.
Fixing Matlab's actxserver
Matlab's COM (ActiveX) server behavior can be fixed in a couple of useful manners.
Buggy Profiler option
a bug exists in the profiler that prevents usage of its documented CPU timing functionality.
Undocumented Profiler options part 4
Several undocumented features of the Matlab Profiler can make it much more useful - part 4 of series.