No need for finding / calculating any phi or angle here. Just simpler than it is written.
Swap the first and last columns
Sorted highest to lowest?
Program an exclusive OR operation with logical operators
Sophie Germain prime
Switch matrix to a column vector
Is this matrix orthogonal?
Is A the inverse of B?
Find the nearest integer
Find the definite integral of various linear functions
Flip the main diagonal of a matrix
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