Please don't use sin(x) directly
True, although not quite following the instruction. (But definitely not as blatant as some other submissions!)
Distance walked 1D
Calculate the area of a triangle between three points
Solving Quadratic Equations (Version 1)
Find out magnitude of vector
Divide by 4
Rotate matrix by -90 degrees
Modified run-length companion vector
Create cosine function out of sine
Convert degrees to radians
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