Re: ArcTanh[x,y] & Wikipedia.

Richard J. Fateman wrote: 
Macsyma / Maxima uses  asin   and asinh   (etc.)
 [...]


Actually the language I use most (Forth) also uses asin and
asinh, for example, in the form fasinh and zasinh, for the real
and complex floating point functions.

I would not expect the openmath standard to be held up
as an example to be followed; rather the openmath people
seem to try to follow someone else's standard. e.g. what
does "cos" mean?  Well, what it usually means.


Well, "what it usually means" isn't so clear for the complex
inverse functions. :-)  I believe you're an expert in this
general area.  I think having a standard helps here, and I have
bought into the openmath version, which I understand to be the
same as Kahan's.  Is it the same as Macsyma/Maxima?

-- David
.

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