FunctionMath.CombineFast(Func<Vector<Double>, Vector<Double>>[]) Method

Constructs a delegate that represents a multivariate function returning a matrix in its second argument from an array of multivariate functions returning a vector.

Definition

Namespace: Extreme.Mathematics
Assembly: Extreme.Numerics (in Extreme.Numerics.dll) Version: 8.1.23

public static Func<Vector<double>, Matrix<double>, Matrix<double>> CombineFast(
	this Func<Vector<double>, Vector<double>>[] functions
)

Visual Basic

<ExtensionAttribute>
Public Shared Function CombineFast ( 
	functions As Func(Of Vector(Of Double), Vector(Of Double))()
) As Func(Of Vector(Of Double), Matrix(Of Double), Matrix(Of Double))

C++/CLI

public:
[ExtensionAttribute]
static Func<Vector<double>^, Matrix<double>^, Matrix<double>^>^ CombineFast(
	array<Func<Vector<double>^, Vector<double>^>^>^ functions
)

[<ExtensionAttribute>]
static member CombineFast : 
        functions : Func<Vector<float>, Vector<float>>[] -> Func<Vector<float>, Matrix<float>, Matrix<float>>

Parameters

functions Func<Vector<Double>, Vector<Double>>[]: An array of multivariate functions returning a vector.

Return Value

Func<Vector<Double>, Matrix<Double>, Matrix<Double>>
A delegate that returns a matrix whose rows correspond to the return values of the elements of functions

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type Func<Vector<Double>, Vector<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

Use this method to combine several multivariate vector functions into one Func<T1, T2, TResult> that returns a matrix whose rows contain each of the function values.

Note that there is a slight performance loss over defining the Func<T1, T2, TResult> directly because of the overhead of invoking multiple delegates instead of one.