derivatives — SciPy v1.15.3 Manual (original) (raw)

scipy.interpolate.UnivariateSpline.

UnivariateSpline.derivatives(x)[source]#

Return all derivatives of the spline at the point x.

Parameters:

xfloat

The point to evaluate the derivatives at.

Returns:

derndarray, shape(k+1,)

Derivatives of the orders 0 to k.

Examples

import numpy as np from scipy.interpolate import UnivariateSpline x = np.linspace(0, 3, 11) y = x**2 spl = UnivariateSpline(x, y) spl.derivatives(1.5) array([2.25, 3.0, 2.0, 0])