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DoubleComplex..::..Log1PlusX Method

DoubleComplex Structure See Also 
Returns the logarithm of 1 plus the argument.

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 DoubleComplex Log1PlusX(
	DoubleComplex z
)
Visual Basic (Declaration) 
                      Public Shared Function Log1PlusX ( _
	z As DoubleComplex _
) As DoubleComplex
Visual C++ 
                      public:
static DoubleComplex Log1PlusX(
	DoubleComplex z
)
F# 
                      static member Log1PlusX : 
        z:DoubleComplex -> DoubleComplex

Parameters

z
Type: Extreme.Mathematics..::..DoubleComplex
A complex number.

Return Value

The logarithm of 1 plus z.

Remarks

For small values of z, the logarithm of 1 + z 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 approximation for z close to 1.

See Also

DoubleComplex Structure
Extreme.Mathematics Namespace

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