Waiting for asynchronous events
The Matlab waitfor function can be used to wait for asynchronous Java/ActiveX events, as well as with timeouts.
High risk of breaking in future versions
Matlab's internal memory representation
Matlab's internal memory structure is explored and discussed.
Profiling Matlab memory usage
mtic and mtoc were a couple of undocumented features that enabled users of past Matlab releases to easily profile memory usage.
Matlab mex in-place editing
Editing Matlab arrays in-place can be an important technique for optimizing calculations. This article shows how to do it using Mex.
Types of undocumented Matlab aspects
This article lists the different types of undocumented/unsupported/hidden aspects in Matlab
Uitable sorting
Matlab's uitables can be sortable using simple undocumented features
Docking figures in compiled applications
Figures in compiled applications cannot officially be docked since R2008a, but this can be done using a simple undocumented trick.
Plot-type selection components
Several built-in components enable programmatic plot-type selection in Matlab GUI - this article explains how
UDD and Java
UDD provides built-in convenience methods to facilitate the integration of Matlab UDD objects with Java code - this article explains how
JGraph and BDE
This article shows how to display graph-theory diagrams in Matlab using several different Java libraries