Date: Wed, 13 May 1998 11:49:15 +0300 (IDT)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
To: Francois Charton <deef AT pobox DOT oleane DOT com>
cc: Jens Bischoff <j DOT bischoff AT airbus DOT dasa DOT de>, djgpp AT delorie DOT com
Subject: Re: Code to Fix sinh() in libm.a
In-Reply-To: <355855B4.4BA9@pobox.oleane.com>
Message-ID: <Pine.SUN.3.91.980513114738.26082E-100000@is>
MIME-Version: 1.0
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Precedence: bulk


On Tue, 12 May 1998, Francois Charton wrote:

> Another solution for approximating sinh(x) would be to remember that 
> sinh(x) = exp(x)/2 - 1/(2*exp(x))

IMHO, this is not good enough, since it will blow up prematurely for 
large arguments: when exp(x) overflows, sinh(x) not necessarily does so, 
but the above implementation will cause it to.