scipy.interpolate.NdPPoly.
derivative#
- NdPPoly.derivative(nu)[source]#
- Construct a new piecewise polynomial representing the derivative. - Parameters:
- nundim-tuple of int
- Order of derivatives to evaluate for each dimension. If negative, the antiderivative is returned. 
 
- Returns:
- ppNdPPoly
- Piecewise polynomial of orders (k[0] - nu[0], …, k[n] - nu[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 in each dimension are considered half-open, - [a, b), except for the last interval which is closed- [a, b].