scipy.interpolate.PiecewisePolynomial.derivatives

PiecewisePolynomial.derivatives(x, der)

Evaluate a derivative of the piecewise polynomial Parameters ———- x : scalar or array-like of length N der : integer

how many derivatives (including the function value as 0th derivative) to extract
Returns :y : array-like of shape der by R or der by N or der by N by R

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