From: Vincent Lefevre <vincent+gcc@vinc17.org>
To: gcc@gcc.gnu.org
Subject: Re: Sine and Cosine Accuracy
Date: Fri, 27 May 2005 15:19:00 -0000 [thread overview]
Message-ID: <20050527134205.GV5967@ay.vinc17.org> (raw)
In-Reply-To: <84EA05E2CA77634C82730353CBE3A843028F459D@SAUSEXMB1.amd.com>
On 2005-05-26 16:33:00 -0500, Menezes, Evandro wrote:
> Keep in mind that x87 transcendentals are not the most accurate
> around, but all x86 processors from any manufacturer produce roughly
> the same results for any argument as the 8087 did way back when,
> even if the result is hundreds of ulps off...
BTW, a few years ago, I heard that some manufacturer had an
x86-compatible processor with math functions that were (slightly)
more accurate than Intel's, and users complained because they
didn't get the same results as with Intel processors, and thought
that the non-Intel one was buggy.
--
Vincent Lefèvre <vincent@vinc17.org> - Web: <http://www.vinc17.org/>
100% accessible validated (X)HTML - Blog: <http://www.vinc17.org/blog/>
Work: CR INRIA - computer arithmetic / SPACES project at LORIA
next prev parent reply other threads:[~2005-05-27 13:42 UTC|newest]
Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-26 23:59 Menezes, Evandro
2005-05-27 15:19 ` Vincent Lefevre [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-05-28 6:42 Menezes, Evandro
2005-05-28 4:32 Menezes, Evandro
2005-05-28 5:02 ` Scott Robert Ladd
2005-05-28 10:44 ` Gary Funck
2005-05-27 0:54 Menezes, Evandro
2005-05-27 0:54 ` Scott Robert Ladd
2005-05-27 12:42 ` Scott Robert Ladd
2005-05-27 0:39 Menezes, Evandro
2005-05-27 0:54 ` Scott Robert Ladd
2005-05-26 23:31 Uros Bizjak
2005-05-26 23:52 ` Paul Koning
2005-05-26 23:56 ` Gabriel Dos Reis
2005-05-26 23:57 ` Steven Bosscher
2005-05-27 15:09 ` Olivier Galibert
2005-05-27 15:28 ` Vincent Lefevre
2005-05-27 18:27 ` Marcin Dalecki
2005-05-26 18:38 Morten Welinder
2005-05-26 20:58 ` Andrew Haley
2005-05-26 17:53 Morten Welinder
2005-05-26 18:10 ` Scott Robert Ladd
2005-05-26 18:22 ` Dave Korn
2005-05-26 18:49 ` Scott Robert Ladd
2005-05-26 19:28 ` Dave Korn
2005-05-26 16:05 Scott Robert Ladd
2005-05-26 16:09 ` Andrew Haley
2005-05-26 16:33 ` Scott Robert Ladd
2005-05-26 17:14 ` Andrew Haley
2005-05-26 17:01 ` Paolo Carlini
2005-05-26 17:23 ` Richard Henderson
2005-05-26 17:24 ` Scott Robert Ladd
2005-05-26 17:27 ` Paul Koning
2005-05-26 17:27 ` Scott Robert Ladd
2005-05-26 17:29 ` Dave Korn
2005-05-26 17:37 ` David Daney
2005-05-26 17:56 ` Dave Korn
2005-05-26 17:40 ` Scott Robert Ladd
2005-05-26 18:12 ` Paul Koning
2005-05-26 18:32 ` Scott Robert Ladd
2005-05-26 18:50 ` Paul Koning
2005-05-26 19:14 ` Andrew Pinski
2005-05-26 19:35 ` Scott Robert Ladd
2005-05-29 6:22 ` Geoffrey Keating
2005-05-31 14:34 ` Paul Koning
2005-05-31 22:58 ` Geoff Keating
2005-05-29 12:07 ` Roger Sayle
2005-05-30 15:34 ` Vincent Lefevre
2005-05-29 2:22 ` Kai Henningsen
2005-05-29 18:16 ` Marc Espie
2005-05-29 20:58 ` Georg Bauhaus
2005-05-30 15:19 ` Gabriel Dos Reis
2005-05-30 15:19 ` Marc Espie
2005-05-30 17:26 ` Scott Robert Ladd
2005-05-30 17:18 ` Marc Espie
2005-05-30 18:11 ` Scott Robert Ladd
2005-05-30 17:31 ` Scott Robert Ladd
2005-05-31 3:10 ` chris jefferson
2005-05-31 12:17 ` Andrew Haley
2005-05-31 12:46 ` Scott Robert Ladd
2005-05-31 13:02 ` Andrew Haley
2005-05-31 13:34 ` Vincent Lefevre
2005-05-30 15:35 ` Bernhard R. Link
2005-05-30 18:59 ` Scott Robert Ladd
2005-05-30 19:16 ` Georg Bauhaus
2005-05-30 19:17 ` Bernhard R. Link
2005-05-30 19:54 ` Georg Bauhaus
2005-05-30 20:04 ` Gabriel Dos Reis
2005-05-26 17:35 ` Kevin Handy
2005-05-26 17:41 ` Paul Koning
2005-05-26 20:26 ` Joseph S. Myers
2005-05-26 21:15 ` Gabriel Dos Reis
2005-05-26 21:17 ` Scott Robert Ladd
2005-05-26 23:25 ` Gabriel Dos Reis
2005-05-27 0:18 ` Scott Robert Ladd
2005-05-27 0:54 ` Gabriel Dos Reis
2005-05-27 11:29 ` Marcin Dalecki
2005-05-27 9:36 ` Marcin Dalecki
2005-05-27 10:48 ` Marcin Dalecki
2005-05-26 21:33 ` Richard Henderson
2005-05-27 0:05 ` Scott Robert Ladd
2005-05-27 0:43 ` Gabriel Dos Reis
2005-05-27 0:54 ` Scott Robert Ladd
2005-05-28 11:26 ` Russ Allbery
2005-05-27 13:56 ` Vincent Lefevre
2005-05-29 3:36 ` Kai Henningsen
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