BasicFunctionsLogRel(Double, Boolean) Method

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

Namespace: Altaxo.Calc
Assembly: AltaxoCore (in AltaxoCore.dll) Version: 4.8.3572.0 (4.8.3572.0)

Syntax

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


             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

Reference

BasicFunctions Class

LogRel Overload

Altaxo.Calc Namespace