Calculate sum of positive elements of the matrix.
Get the length of a given vector
Find the area of a rectangle if length of the diagonal is given.
Summation of array
For given xx,x, y vectors build spline of x and y and find yy values for xx vector.
Find sum of negative elements in row.
Calculate roots of polynomial given as vector array.
Opposite task convert binary numbers array into array of decimal numbers.
Get derivarive of polynomial given as vector array.
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