numpy.polynomial.Polynomial.deriv ¶
method
 Polynomial. deriv ( m = 1 ) ¶

Differentiate.
Return a series instance of that is the derivative of the current series.
 Parameters

 m nonnegative int

Find the derivative of order m .
 Returns

 new_series series

A new series representing the derivative. The domain is the same as the domain of the differentiated series.