Test cases have been added to this problem.
I don"t want dumplings!
The Goldbach Conjecture
Angle between two vectors
Return unique values without sorting
Rotate a Matrix by 90 degrees
Find out sum of all elements of given Matrix
Calculate the values of a polynomial.
Set x value to each even index of vector y.
Form a square matrix from four square sub-matrices
Create a square matrix with given conditions
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