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[resend] About missing inverse hyperbolic function


From: Bastien ROUCARIES
Subject: [resend] About missing inverse hyperbolic function
Date: Wed, 2 Jan 2008 16:32:18 +0100
User-agent: KMail/1.9.7

(resend using good mail address, sorry)

Hi,

I need for my program to use asinh acosh and atanh. For now I used to define 
it if missing using
#define asinh(x) log(x+sqrt(x*x+1))
#define acosh(x) log(x+sqrt(x-1.0)*sqrt(x+1.0))
#define atanh(x)  (0.5*log(x+1)-0.5*log(1-x))

How can I create a gnulib module in order to do that?

Regards Bastien
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"ROUCARIES Bastien"
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