From: Vincent Lefevre <vincent@vinc17.org>
To: "David Kågedal" <davidk@lysator.liu.se>
Cc: Patrick Aussems <zyk@bugfactory.org>, zsh-users@sunsite.auc.dk
Subject: Re: Floating point calculus error...
Date: Sun, 25 Aug 2002 20:07:08 +0200 [thread overview]
Message-ID: <20020825180708.GE6783@greux.loria.fr> (raw)
In-Reply-To: <87k7me2921.fsf@bix.grotte>
On Sun, Aug 25, 2002 at 18:32:38 +0200, David Kågedal wrote:
> Vincent Lefevre <vincent@vinc17.org> writes:
> > $ echo $[0.4]
> > 0.40000000000000002
> >
> > I think that it should give the minimum number of decimals in such a way
> > that when converting back to binary, one should get the same result.
>
> But it does.
No, this is not the *minimum* number of decimal digits. 0.4 would
be sufficient in this case.
--
Vincent Lefèvre <vincent@vinc17.org> - Web: <http://www.vinc17.org/> - 100%
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des Jeux Mathématiques et Logiques, TETRHEX, etc.
Work: CR INRIA - computer arithmetic / SPACES project at LORIA
next prev parent reply other threads:[~2002-08-25 18:07 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-25 15:22 Patrick Aussems
2002-08-25 15:53 ` Vincent Lefevre
2002-08-25 16:32 ` David Kågedal
2002-08-25 18:07 ` Vincent Lefevre [this message]
2002-08-25 16:01 ` Erik Trulsson
2002-08-25 16:37 ` Bart Schaefer
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