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] -> 
Least common multiple of many numbers
Find nearest prime number less than input number
sum of non-primes
Do you like your boss?
Rounding off numbers to n decimals
BLOCK x3 (Version 4)
Magic is simple (for beginners)
Mysterious digits operation (easy)
Mirror, mirror on the wall, who is fairest of them all?
Chess ELO rating system
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