The problem description is broken(?) and you have mentioned the code in the test suite (you might want to remove that)
The test suite has had the "solution" code removed. The description was also cleaned up. (If it's not loading, simply reload the page.) I'm not sure how much these fixes help, though...
Number of toolboxes?
Rotate input square matrix 90 degrees CCW without rot90
calculate linear convolution two vectors
Determine the square root
is the number happy?
Magic Concentric Circles
Convert vector datasets to plot with imagesc instead of scatter
Tony's trick for duplicating an mx1 vector n times
Is this number Munchhausen Narcissistic?
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