The numpy.polyder (p, m) method evaluates the derivative of a polynomial in the specified order.
p: [array_like or poly1D] the polynomial coefficients are given in decreasing order of powers. If the second parameter (root) is set to True then array values are the roots of the polynomial equation.
For example: poly1d (3, 2, 6) = 3x 2 + 2x + 6
m: [int, optional] Order of differentiation.
Return: strong>Derivative of polynomial.
Code: Python code explaining polyder ()
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