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] -> 
Select every other element of a vector
Remove the polynomials that have positive real elements of their roots.
Back to basics 21 - Matrix replicating
Recycled Numbers (CodeJam Qualification Round 2012)
Numbers spiral diagonals (Part 1)
What is the scope of variables in Matlab ?
Find indices of diagonal elements
Return a list sorted by number of consecutive occurrences
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