scipy.interpolate.KroghInterpolator.derivatives¶
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KroghInterpolator.derivatives(x, der=None)[source]¶ Evaluate many derivatives of the polynomial at the point x
Produce an array of all derivative values at the point x.
- Parameters
- xarray_like
Point or points at which to evaluate the derivatives
- derint or None, optional
How many derivatives to extract; None for all potentially nonzero derivatives (that is a number equal to the number of points). This number includes the function value as 0th derivative.
- Returns
- dndarray
Array with derivatives; d[j] contains the jth derivative. Shape of d[j] is determined by replacing the interpolation axis in the original array with the shape of x.
Examples
>>> from scipy.interpolate import KroghInterpolator >>> KroghInterpolator([0,0,0],[1,2,3]).derivatives(0) array([1.0,2.0,3.0]) >>> KroghInterpolator([0,0,0],[1,2,3]).derivatives([0,0]) array([[1.0,1.0], [2.0,2.0], [3.0,3.0]])