Remove the polynomials that have positive real elements of their roots.
middleAsColumn: Return all but first and last element as a column vector
Rotate a Matrix by 90 degrees
Create an n-by-n null matrix and fill with ones certain positions
Find the next Fibonacci number
Magic Concentric Circles
Is this number Munchhausen Narcissistic?
Tony's trick for duplicating an mx1 vector n times
remove nans fast
Convert vector datasets to plot with imagesc instead of scatter
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