Returns the value of the derivative of the B-spline at a point.

Namespace: Imsl.Math
Assembly: ImslCS (in ImslCS.dll) Version: 6.5.0.0

Syntax

C#
public double Derivative(
	double x,
	int ideriv
)
Visual Basic (Declaration)
Public Function Derivative ( _
	x As Double, _
	ideriv As Integer _
) As Double
Visual C++
public:
double Derivative(
	double x, 
	int ideriv
)

Parameters

x
Type: System..::.Double
A double which specifies the point at which the derivative is to be evaluated.
ideriv
Type: System..::.Int32
A int specifying the derivative to be computed.

Return Value

A double containing the value of the derivative of the B-spline at the point x.

Remarks

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

See Also