Back to basics 25 - Valid variable names
Doubling elements in a vector
Do Fast Fourier Transformation
Pointwise multiplication of vectors.
How to calculate log?
For given vectors x,y find coresponding spline coefficients.
For given xx,x, y vectors build spline of x and y and find yy values for xx vector.
Calculate the values of a polynomial.
Find cosine between two given vectors u and v.
Delete x value in given vector y.
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