why this code is not correct?
s = summ(v)
sorry mate, this is unfair for those who actually came up with a compact solution
No need to be sorry.
Personally I think the regexp should be always forbidden.
I used it (and I had never thought about it before) because it seems that everyone is using it.
Select every other element of a vector
Find the alphabetic word product
Angle between two vectors
middleAsColumn: Return all but first and last element as a column vector
Remove the first, third and fifth rows of a matrix
Find the largest number
Triangle of numbers
Remove the air bubbles from a vector
Separate even from odd numbers in a vector - without loops
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