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]
Return the Fibonacci Sequence
Solve the set of simultaneous linear equations
Determine the number of odd integers in a vector
Length of a short side
Check that number is whole number
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