scipy.interpolate.CubicHermiteSpline.
derivative#
- CubicHermiteSpline.derivative(nu=1)[source]#
- Construct a new piecewise polynomial representing the derivative. - Parameters:
- nuint, optional
- Order of derivative to evaluate. Default is 1, i.e., compute the first derivative. If negative, the antiderivative is returned. 
 
- Returns:
- ppPPoly
- Piecewise polynomial of order k2 = k - n representing the derivative of this polynomial. 
 
 - Notes - Derivatives are evaluated piecewise for each polynomial segment, even if the polynomial is not differentiable at the breakpoints. The polynomial intervals are considered half-open, - [a, b), except for the last interval which is closed- [a, b].