No need for finding / calculating any phi or angle here. Just simpler than it is written.
Times 2 - START HERE
Tell me the slope
Number of 1s in the Binary Representation of a Number
"Low : High - Low : High - Turn around " -- Create a subindices vector
Duplicate each element of a vector.
What is the distance from point P(x,y) to the line Ax + By + C = 0?
Find the definite integral of various linear functions
Solve the set of simultaneous linear equations
Is this matrix orthogonal?
How many days does the cat take to climb out of the hole?
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