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]
First non-zero element in each column
Volume of a Parallelepiped
Insert zeros into vector
Sum my indices
Find the next square number
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