Given 2 pairs of cartesian co-ordinates, determine the angle between the 2 vectors formed by the points and the origin. Angle must be in [0,180] and in degrees.
[0 1;2 0]
[1 1;-2 0]
[1 1;2 2]
Find common elements in matrix rows
Project Euler: Problem 6, Natural numbers, squares and sums.
MATLAB Basic: rounding II
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