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/
Project Euler: Problem 2, Sum of even Fibonacci
Clock Hand Angle 1
Check if number exists in vector
select the primes of a vector
Encoding Google Maps Polylines
Give a matrix that matches itself when rotated
Is It a Snake?
Convex Hull Capture
Find the biggest empty box
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