scipy.interpolate.KroghInterpolator.
derivatives#
- KroghInterpolator.derivatives(x, der=None)[source]#
- Evaluate several derivatives of the polynomial at the point x - Produce an array of derivatives evaluated at the point x. - Parameters:
- xarray_like
- Point or points at which to evaluate the derivatives 
- derint or list or None, optional
- How many derivatives to evaluate, or None for all potentially nonzero derivatives (that is, a number equal to the number of points), or a list of derivatives to evaluate. This number includes the function value as the ‘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]])