BSpline.Derivative Method (Double[], Int32)

BSplineDerivative Method (Double, Int32)

Returns the value of the derivative of the B-spline at each point of an array.

Namespace: Imsl.Math
Assembly: ImslCS (in ImslCS.dll) Version: 6.5.2.0

Syntax

public double[] Derivative(
	double[] x,
	int ideriv
)

Public Function Derivative ( 
	x As Double(),
	ideriv As Integer
) As Double()

public:
array<double>^ Derivative(
	array<double>^ x, 
	int ideriv
)

member Derivative : 
        x : float[] * 
        ideriv : int -> float[]

x: Type: SystemDouble
A double array of points at which the derivative is to be evaluated.
ideriv: Type: SystemInt32
A int specifying the derivative to be computed.

Type: Double
A double array containing the value of the derivative the B-spline at each point of the array x.

Remarks

If ideriv is zero, the function value is returned. If one, the first derivative is returned, etc.