No need for finding / calculating any phi or angle here. Just simpler than it is written.
Find the sum of all the numbers of the input vector
radius of a spherical planet
Longest run of consecutive numbers
Generate a random matrix A of (1,-1)
Make a vector of prime numbers
How long do each of the stages of the rocket take to burn?
What is the distance from point P(x,y) to the line Ax + By + C = 0?
How many days does the cat take to climb out of the hole?
Solve the set of simultaneous linear equations
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