test cases imply that the question title should be "spot the square"
I added a rectangular (non-square) test case. Thanks for the note.
This is a good answer. I changed the test suite so that you wouldn't have to deal with logical input matrices. Sorry about that!
This code is referenced in the following blog post: http://blogs.mathworks.com/community/2015/01/19/robot-game-playing-in-matlab-part-2/
letter yes yes & letter no no
Put two time series onto the same time basis
Right Triangle Side Lengths (Inspired by Project Euler Problem 39)
Make a vector of prime numbers
Is this group simply connected?
Convert hex color specification to MATLAB RGB
Count the Digits in the Box
Find the biggest empty box
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