From mboxrd@z Thu Jan 1 00:00:00 1970 Received: (from majordomo@localhost) by pauillac.inria.fr (8.7.6/8.7.3) id HAA27666; Fri, 8 Oct 2004 07:49:18 +0200 (MET DST) X-Authentication-Warning: pauillac.inria.fr: majordomo set sender to owner-caml-list@pauillac.inria.fr using -f Received: from nez-perce.inria.fr (nez-perce.inria.fr [192.93.2.78]) by pauillac.inria.fr (8.7.6/8.7.3) with ESMTP id HAA26643 for ; Fri, 8 Oct 2004 07:49:17 +0200 (MET DST) Received: from post.bourget.univ-savoie.fr (post.bourget.univ-savoie.fr [193.48.120.73]) by nez-perce.inria.fr (8.13.0/8.13.0) with ESMTP id i985nGt7010383 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=NO) for ; Fri, 8 Oct 2004 07:49:17 +0200 Received: from univ-savoie.fr (d85.lama.univ-savoie.fr [193.48.123.85]) by post.bourget.univ-savoie.fr (8.12.3/jtpda-5.4) with ESMTP id i985nASY003684 ; Fri, 8 Oct 2004 07:49:10 +0200 Message-ID: <41662A5D.8040600@univ-savoie.fr> Date: Fri, 08 Oct 2004 07:49:17 +0200 From: Christophe Raffalli User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040115 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "Harrison, John R" CC: caml-list Subject: Re: [Caml-list] Are you sure the new "=" of 3.08 is good ? References: <012676D607FCF54E986746512C22CE7D0FE7B6@orsmsx407> In-Reply-To: <012676D607FCF54E986746512C22CE7D0FE7B6@orsmsx407> X-Enigmail-Version: 0.83.3.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigE325F5D6CC60D55D869E7D3E" Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.33 (www . roaringpenguin . com / mimedefang) X-Miltered: at nez-perce with ID 41662A5C.001 by Joe's j-chkmail (http://j-chkmail.ensmp.fr)! X-Loop: caml-list@inria.fr X-Spam: no; 0.00; raffalli:01 raffalli:01 univ-savoie:01 caml-list:01 openpgp:01 2440:01 3156:01 rounding:01 savoie:01 chablais:01 73376:01 univ-savoie:01 lama:01 enigmail:01 mutt:01 X-Attachments: type="application/pgp-signature" name="signature.asc" name="signature.asc" Sender: owner-caml-list@pauillac.inria.fr Precedence: bulk This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigE325F5D6CC60D55D869E7D3E Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit > You can perfectly well compute it, and the general consensus among the > floating-point community is that trig functions should do the best they > reasonably can even on huge arguments. Techniques for doing this kind > of reduction reasonably efficiently have been known for at least 20 > years, e.g. Yes you can perfectly compute sin 10e100. But if x is the result of any computation (with rounding error), and x is huge, sin x may be any value between -1 and 1. So the best value from sin x is either 0 (your possible error is minimum) or nan. -- Christophe Raffalli Université de Savoie Batiment Le Chablais, bureau 21 73376 Le Bourget-du-Lac Cedex tél: (33) 4 79 75 81 03 fax: (33) 4 79 75 87 42 mail: Christophe.Raffalli@univ-savoie.fr www: http://www.lama.univ-savoie.fr/~RAFFALLI --------------------------------------------- IMPORTANT: this mail is signed using PGP/MIME At least Enigmail/Mozilla, mutt or evolution can check this signature --------------------------------------------- --------------enigE325F5D6CC60D55D869E7D3E Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFBZipeSQDyWB/+xBwRAnjTAJ9uTdxpN9uaCWu4pF2NnVVrP1Uz5QCgvmJR GklwEbeEUtV6l+mUBxhgxlI= =7Yqh -----END PGP SIGNATURE----- --------------enigE325F5D6CC60D55D869E7D3E-- ------------------- To unsubscribe, mail caml-list-request@inria.fr Archives: http://caml.inria.fr Bug reports: http://caml.inria.fr/bin/caml-bugs FAQ: http://caml.inria.fr/FAQ/ Beginner's list: http://groups.yahoo.com/group/ocaml_beginners