Math<(Of <(<'T>)>)>..::..Log1PlusX Method

Math<(Of <(<'T>)>)> Class See Also

Returns the logarithm of 1 plus the argument.

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

Syntax

C#
public static T Log1PlusX( T x )

Visual Basic (Declaration)
Public Shared Function Log1PlusX ( _ x As T _ ) As T

Visual C++
public: static T Log1PlusX( T x )

F#
static member Log1PlusX : x:'T -> 'T

Parameters

x: Type: T
A real number greater than -1.

Return Value

The logarithm of 1 plus x.

Remarks

For small values of x, the logarithm of 1 + x is close to zero. When the logarithm is evaluated directly, this can cause significant round-off error. This function resolves this problem by using a direct approximations for x close to 1.

Exceptions

Exception	Condition
System..::..ArgumentOutOfRangeException	x is less than or equal to -1.