Multiply two polynomials p and q given in vector representation.
p=[-2 0 1 -1 3 2]
q=[1 0 -1 2 4]
result=[-2 0 3 -5 -6 5 -1 0 16 8]
Most nonzero elements in row
Implement a ROT13 cipher
Back to basics 8 - Matrix Diagonals
Rounding off numbers to n decimals
Divide polynomial p1 by p2.
Solve expression II
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.
Sum positive elements of matrix.
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