Find scalar product of two polynomials given as vector array.
a=[1 -1 2];
b=[2 4 1];
Remove the positive integers.
Is it column vector?
Find Euclidean norm of given vector u.
Replace x value into y value in string text.
Sum positive elements of matrix.
Delete x value in given vector y.
Multiply two polynomials p and q given in in vector representation.
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