NumericalDerivatives.EvaluateF Method

NumericalDerivativesEvaluateF Method

This method is provided by the user to compute the function values at the current independent variable values y.

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

Syntax

public virtual double[] EvaluateF(
	int varIndex,
	double[] y
)

Public Overridable Function EvaluateF ( 
	varIndex As Integer,
	y As Double()
) As Double()

public:
virtual array<double>^ EvaluateF(
	int varIndex, 
	array<double>^ y
)

abstract EvaluateF : 
        varIndex : int * 
        y : float[] -> float[] 
override EvaluateF : 
        varIndex : int * 
        y : float[] -> float[]

Parameters

varIndex: Type: SystemInt32
An int which indicates the index of the variable to perturb.
y: Type: SystemDouble
A double array of length n, the point at which the function is to be evaluated.

Return Value

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

Remarks

If the user does not override the EvaluateF method, then NumericalDerivatives.IFunction.F is used to compute the function values.

Reference

NumericalDerivatives Class

Imsl.Math Namespace