Find the numeric mean of the prime numbers in a matrix.
Convert a numerical matrix into a cell array of strings
Create an 'arrow-head" matrix
Basic arrays operations.
Is it an Armstrong number?
ismember: Enhanced Performance for 'rows' and width - Speed Scoring (66% savings)
Cody Matlab Version
Solve Quadratic : No * - or key functions permitted
Rubik's Cube : Solve Ten Face Move - Speed Scoring
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