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BasicFunctionsLogRel(Double, Boolean) Method

Computes log(1 + x) with relative error accuracy near x = 0.

Namespace: Altaxo.Calc
Assembly: AltaxoCore (in AltaxoCore.dll) Version: 4.8.3448.0 (4.8.3448.0)
Syntax
C#
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public static double LogRel(
	double x,
	bool bDebug
)

Parameters

x  Double
The function argument.
bDebug  Boolean
If true, an exception will be thrown if errors occur; if false, NaN is returned in this case.

Return Value

Double
log(1 + x) computed with improved relative accuracy for values of x near 0.
Remarks
C#
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June 1977 edition.   W. Fullerton, c3, Los Alamos Scientific Lab.

series for alnr       on the interval -3.75000e-01 to  3.75000e-01
                                       with weighted error   6.35e-32
                                        log weighted error  31.20
                              significant figures required  30.93
                                   decimal places required  32.01
See Also