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] -> 
Roll the Dice!
Back to basics 1 - Saving
Back to basics 11 - Max Integer
Return unique values without sorting
Reverse a matrix
Chess ELO rating system
Rank of magic square (for beginners)
Getting the indices from a matrice
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