SymbolicMath..::..GetDerivative Method

SymbolicMath Class See Also

Creates a function of one variable that represents the derivative of the specified function of one variable.

Namespace: Extreme.Mathematics
Assembly: Extreme.Numerics.Net40 (in Extreme.Numerics.Net40.dll) Version: 4.2.11333.0 (4.2.12253.0)

Syntax

C#
public static Func<double, double> GetDerivative( Expression<Func<double, double>> targetFunction )

Visual Basic (Declaration)
Public Shared Function GetDerivative ( _ targetFunction As Expression(Of Func(Of Double, Double)) _ ) As Func(Of Double, Double)

Visual C++
public: static Func<double, double>^ GetDerivative( Expression<Func<double, double>^>^ targetFunction )

F#
static member GetDerivative : targetFunction:Expression<Func<float, float>> -> Func<float, float>

Parameters

targetFunction: Type: System.Linq.Expressions..::..Expression<(Of <(<'Func<(Of <(<'Double, Double>)>)>>)>)>
A lambda expression that represents a function of one variable.

Return Value

A delegate that represents a function of one variable that represents the numerical derivative of targetFunction

Remarks

The derivative is 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.

Exceptions

Exception	Condition
System..::..ArgumentNullException	targetFunction is nullNothingnullptra null reference (Nothing in Visual Basic).