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] -> 
Derivative of polynomial
Who invented zero?
sum of first 'n' terms
Pandigital number n°1 (Inspired by Project Euler 32)
Decrypt the cypher using XOR encryption (for beginners)
Divisors for big integer
What is the scope of variables in Matlab ?
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