If & # 39; N & # 39; — polynomial length & # 39; p & # 39;, this function returns
p: [array_like or poly1D] 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
x: [array_like or poly1D] A number, an array of numbers, for evaluating 'p'.
Return:Evaluated value of polynomial.
Code: Python code explaining polyval () p>
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