SymbolicMath.GetFunctionAndGradient Method

Returns a delegate that symbolically evaluates the gradient and returns the value of a multivariate function.

Definition

Namespace: Numerics.NET
Assembly: Numerics.NET (in Numerics.NET.dll) Version: 9.0.2

public static Func<Vector<double>, Vector<double>, double> GetFunctionAndGradient(
	Expression<Func<Vector<double>, double>> function
)

Visual Basic

Public Shared Function GetFunctionAndGradient ( 
	function As Expression(Of Func(Of Vector(Of Double), Double))
) As Func(Of Vector(Of Double), Vector(Of Double), Double)

C++/CLI

public:
static Func<Vector<double>^, Vector<double>^, double>^ GetFunctionAndGradient(
	Expression<Func<Vector<double>^, double>^>^ function
)

static member GetFunctionAndGradient : 
        function : Expression<Func<Vector<float>, float>> -> Func<Vector<float>, Vector<float>, float>

Parameters

function Expression<Func<Vector<Double>, Double>>: A lambda expression that represents a multivariate function.

Return Value

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

Remarks

The partial derivatives are calculated symbolically from the supplied lambda expression. The expression must not contain loops or blocks. If functions are encountered for which no symbolic derivative is available, a numerical approximation is used.

SymbolicMath.GetFunctionAndGradient Method

Definition

Parameters

Return Value

Remarks

See Also

Reference