Similar to, though simpler than, James's decimation problem: https://www.mathworks.com/matlabcentral/cody/problems/1092-decimation.
Find the numeric mean of the prime numbers in a matrix.
Find state names that end with the letter A
Find common elements in matrix rows
Column norms of a matrix
Area of a Square
Number of divisors of a given number
Recursive Standard Deviation
Slicing the cube
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