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/
N-Dimensional Array Slice
Is X a Fibonacci Matrix?
Find out sum and carry of Binary adder
The 5th Root
Simulate one complete step in the Biham–Middleton–Levine traffic model
Convex Hull Capture
Remove the air bubbles
How Many Months Until It's Today Again?
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