This problem has been polished and the test suite expanded and improved.
Back to basics 7 - Equal NaNs
Add two numbers
Back to basics - mean of corner elements of a matrix
Create a square matrix of zeros of even order
Sum the squares of numbers from 1 to n
Set x value to each even index of vector y.
Find cosine between two given vectors u and v.
Calculate the sum of elements of n*n Hilbert matrix.
For given xx,x, y vectors build spline of x and y and find yy values for xx vector.
Find scalar product of two polynomials a and b, given as vector array.
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