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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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