Replicate each element of a row vector (with NaN) a constant number of times.
n=2, A=[1 2 3] -> [1 1 2 2 3 3]
n=0, A=[2 1] -> 
Is my wife right? Now with even more wrong husband
Back to basics 3 - Temp Directory
Matrix to column conversion
Sum of the Matrix Elements
Find files with extension ext in the current directory
Clear all empty variables from the workspace
Find indices of diagonal elements
Numbers spiral diagonals (Part 2)
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