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.
Back to basics 9 - Indexed References
We love vectorized solutions. Problem 1 : remove the row average.
Vector Magnitude Calculator
Find out value of sine given by degree.
Non trivial identities - differentiation
Geometrical meaning of determinant
A shooting competition
Area of polygon
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