It's four o'clock in the morning and I'm working on a MATLAB homework assignment, doing basic GUI stuff with uicontrol objects. My code is an atrocity, but it all works except for one thing.

A Cambridge firm is offering free simulation and verification tools over the Web for developers of broadband wireless products. Commsonic’s first offering, called TestiPHY, is a Matlab program that ...

I've noticed in my programs sometimes the GUI controls things and calls the guts, other times the guts control the program and calls the GUI. Take Sudoku for example. You could write a solver such ...