When measuring performance, it is best to use huge numbers (N = randi(1701034) may return a small number, and it would be best that you use something like 1e7 + randi(1e5)). If N is small (and currently it can be), the trivial sum may perform better depending on which operations are running at the server in a given moment.
Remove all the consonants
Angle between Two Vectors
Set the array elements whose value is 13 to 0
What is Sum Of all elements of Matrix
Geometrical meaning of determinant
Non trivial identities - reshape
Find the diagonal of the square of side L
Area of polygon
Probabilities - More brains than luck
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