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] -> 
Increment a number, given its digits
Find the sum of the elements in the "second" diagonal
Derivative of polynomial
Is it a number?
Mysterious digits operation (easy)
Recycled Numbers (CodeJam Qualification Round 2012)
Pandigital number n°1 (Inspired by Project Euler 32)
Chess ELO rating system
BLOCK x3 (Version 3)
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