No need for finding / calculating any phi or angle here. Just simpler than it is written.
Select every other element of a vector
Program an exclusive OR operation with logical operators
Back to basics 26 - Keywords
sum of first 'n' terms
Check that number is whole number
Flip the main diagonal of a matrix
How many days does the cat take to climb out of the hole?
Is this matrix orthogonal?
Solve the set of simultaneous linear equations
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