FunctionMath.GetNumericalGradient Method

Returns a delegate that numerically evaluates the gradient of a multivariate function.

Definition

Namespace: Numerics.NET
Assembly: Numerics.NET (in Numerics.NET.dll) Version: 9.0.4

public static Func<Vector<double>, Vector<double>?, Vector<double>> GetNumericalGradient(
	this Func<Vector<double>, double> function
)

Visual Basic

<ExtensionAttribute>
Public Shared Function GetNumericalGradient ( 
	function As Func(Of Vector(Of Double), Double)
) As Func(Of Vector(Of Double), Vector(Of Double), Vector(Of Double))

C++/CLI

public:
[ExtensionAttribute]
static Func<Vector<double>^, Vector<double>^, Vector<double>^>^ GetNumericalGradient(
	Func<Vector<double>^, double>^ function
)

[<ExtensionAttribute>]
static member GetNumericalGradient : 
        function : Func<Vector<float>, float> -> Func<Vector<float>, Vector<float>, Vector<float>>

Parameters

function Func<Vector<Double>, Double>: A delegate that represents a multivariate function.

Return Value

Func<Vector<Double>, Vector<Double>, Vector<Double>>
A delegate that represents a multivariate function returning a vector in its second argument.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type Func<Vector<Double>, Double>. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

Remarks

Simple forward differences are used to compute the numerical derivatives.