This is documentation for an old release of SciPy (version 0.9.0). Read this page Search for this page in the documentation of the latest stable release (version 1.15.1).

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