This problem has been polished along with an enhanced test suite.
Times 2 - START HERE
Back to basics 7 - Equal NaNs
Back to basics 23 - Triangular matrix
Compute a dot product of two vectors x and y
Calculate area of sector
Multiply two polynomials p and q given in in vector representation.
Set x value to each odd index of vector y.
Set x value to each even index of vector y.
For given xx,x, y vectors build spline of x and y and find yy values for xx vector.
Find the sines of an isosceles triangle when given its area and height
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