NumericalDerivatives.IFunction.F Method

NumericalDerivativesIFunctionF Method

Returns the equations evaluated at the point y. If the user does not override the EvaluateF method, then F is also used to compute the function values at the current independent variable values

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

Syntax

C++

Copy

double[] F(
	int varIndex,
	double[] y
)

Function F ( 
	varIndex As Integer,
	y As Double()
) As Double()

array<double>^ F(
	int varIndex, 
	array<double>^ y
)

abstract F : 
        varIndex : int * 
        y : float[] -> float[]

Parameters

varIndex: Type: SystemInt32
An int indicating the index of the variable to perturb. varIndex = 1 indicates variable 1 in y[0].
y: Type: SystemDouble
A double array of length n, the point at which the Jacobian is to be evaluated.

Return Value

Type: Double
A double array of length m. The equations evaluated at the point y.

Reference

NumericalDerivativesIFunction Interface

Imsl.Math Namespace