From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Luc Teirlinck Newsgroups: gmane.emacs.devel Subject: Re: Calc: `*' binds more strongly than `/' Date: Thu, 26 Apr 2007 18:17:32 -0500 (CDT) Message-ID: <200704262317.l3QNHWYn005964@jane.dms.auburn.edu> References: <87y7kvxj6p.fsf@arcor.de> <863b2z2mma.fsf@blue.stonehenge.com> <55350.128.165.123.18.1176926533.squirrel@webmail.lanl.gov> <86ps5zuwmi.fsf@blue.stonehenge.com> <87ps5zi1h2.fsf@truman.edu> <462C8EA2.9090003@gnu.org> <87ejmbdr1x.fsf@truman.edu> <87d51sqinn.fsf@gmail.com> <87647j93tz.fsf@gmail.com> <39030.128.165.123.18.1177600068.squirrel@webmail.lanl.gov> <200704261832.l3QIWajF026730@jane.dms.auburn.edu> NNTP-Posting-Host: lo.gmane.org X-Trace: sea.gmane.org 1177629633 11203 80.91.229.12 (26 Apr 2007 23:20:33 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Thu, 26 Apr 2007 23:20:33 +0000 (UTC) Cc: emacs-devel@gnu.org To: cs-usenet@arcor.de Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Apr 27 01:20:32 2007 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1HhDGI-0004p9-Vf for ged-emacs-devel@m.gmane.org; Fri, 27 Apr 2007 01:20:31 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1HhDM5-0001oN-5z for ged-emacs-devel@m.gmane.org; Thu, 26 Apr 2007 19:26:29 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1HhDLz-0001kv-90 for emacs-devel@gnu.org; Thu, 26 Apr 2007 19:26:23 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1HhDLx-0001hy-38 for emacs-devel@gnu.org; Thu, 26 Apr 2007 19:26:22 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1HhDLw-0001hk-S5 for emacs-devel@gnu.org; Thu, 26 Apr 2007 19:26:20 -0400 Original-Received: from manatee.dms.auburn.edu ([131.204.53.104]) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_3DES_EDE_CBC_SHA1:24) (Exim 4.60) (envelope-from ) id 1HhDG9-0001rM-Ia for emacs-devel@gnu.org; Thu, 26 Apr 2007 19:20:21 -0400 Original-Received: from jane.dms.auburn.edu (jane.dms.auburn.edu [131.204.53.201]) by manatee.dms.auburn.edu (8.13.7+Sun/8.13.7) with ESMTP id l3QNKF4D009982; Thu, 26 Apr 2007 18:20:15 -0500 (CDT) Original-Received: from jane.dms.auburn.edu (localhost [127.0.0.1]) by jane.dms.auburn.edu (8.13.4+Sun/8.13.4) with ESMTP id l3QNHXrx005967; Thu, 26 Apr 2007 18:17:33 -0500 (CDT) Original-Received: (from teirllm@localhost) by jane.dms.auburn.edu (8.13.4+Sun/8.13.3/Submit) id l3QNHWYn005964; Thu, 26 Apr 2007 18:17:32 -0500 (CDT) X-Authentication-Warning: jane.dms.auburn.edu: teirllm set sender to teirllm@dms.auburn.edu using -f In-reply-to: (message from Christian Schlauer on Thu, 26 Apr 2007 23:29:08 +0200) X-detected-kernel: Solaris 10 (beta) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:70211 Archived-At: Christian Schlauer wrote: Luc, I only wanted `/' to be treated equal as `*', not less than `*' as it is at the moment, but not necessarily more ;-) Yes, but given left-associativity, the _result_ of giving them equal precedence is actually to give, in an expression containing only `*' and `/', `/' higher precedence, is it not? The important consequence of that is that in a product of rational numbers devoid of parentheses, the rational numbers get actually recognized and treated as rational numbers, in as far as the result is concerned, regardless of how the actual algorithm achieves this (precedence or left-associativity). Sincerely, Luc.