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] -> 
Factorize THIS, buddy
What is the distance from point P(x,y) to the line Ax + By + C = 0?
Replace May with April
Sophie Germain prime
select the primes of a vector
Narcissistic number ?
Divisors for big integer
Mysterious digits operation (easy)
Can you beat the lottery again (for hardcore coder) ?
Add more zeros
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