XLPack 7.0
XLPack Numerical Library (Excel VBA) Reference Manual
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◆ Clog1p()

Function Clog1p ( Z As  Complex,
Optional Info As  Long 
)

Complex ln(1+z)

Purpose
Evaluates ln(1 + z) accurately in the sense of relative error when z is very small.
Returns
Complex
ln(1 + z).
Parameters
[in]ZComplex argument z. (z <> -1)
[out]Info(Optional)
= 0: Successful exit.
= 1: Floating point range error.