CurveBaseCubicSplineHorner1stDerivative Method

public double CubicSplineHorner1stDerivative(
	double u,
	IReadOnlyList<double> x,
	IReadOnlyList<double> y,
	IReadOnlyList<double> y1,
	IReadOnlyList<double> y2,
	IReadOnlyList<double> y3
)

Parameters

u  Double

The abscissa value at which the derivative is to be evaluated.

x  IReadOnlyListDouble

The vector (lo,hi) of data abscissa (must be strictly increasing).

y  IReadOnlyListDouble

The vectors (lo,hi) of ordinate (not used for derivative calculation but kept for signature compatibility).

y1  IReadOnlyListDouble

Contains the 1st derivative y'(x(i)).

y2  IReadOnlyListDouble

Contains the 2nd derivative y''(x(i)).

y3  IReadOnlyListDouble

Contains the 3rd derivative y'''(x(i)).

Return Value

Reference