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] -> 
Find common elements in matrix rows
surface of a spherical planet
Back to basics 12 - Input Arguments
Return the first and last character of a string
Permute diagonal and antidiagonal
Recycled Numbers (CodeJam Qualification Round 2012)
How to reverse spdiags ?
Sum of big primes without primes
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