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] -> 
Reverse the vector
Energy of a photon
Back to basics 19 - character types
middleAsColumn: Return all but first and last element as a column vector
Who has power to do everything in this world?
Sum of big primes without primes
Generalised Hamming Number
Find files with extension ext in the current directory
Two functions (to be sure)
Rank of magic square (for beginners)
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