From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Mattias =?UTF-8?Q?Engdeg=C3=A5rd?= Newsgroups: gmane.emacs.bugs Subject: bug#43902: 28.0.50; Calc: Wrong eval precedence rules with LaTeX language Date: Sat, 10 Oct 2020 12:03:25 +0200 Message-ID: References: <871ri6y35h.fsf@web.de> Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.17\)) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="34020"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 43902@debbugs.gnu.org, Jay Belanger To: Michael Heerdegen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Oct 10 12:21:14 2020 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kRC01-0008ik-5m for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 10 Oct 2020 12:21:13 +0200 Original-Received: from localhost ([::1]:60232 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kRC00-0006Q8-8K for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 10 Oct 2020 06:21:12 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:33584) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kRBjP-0002Rb-Kx for bug-gnu-emacs@gnu.org; Sat, 10 Oct 2020 06:04:05 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:53694) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kRBjO-0003jA-FG for bug-gnu-emacs@gnu.org; Sat, 10 Oct 2020 06:04:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kRBjO-0005Kz-BY for bug-gnu-emacs@gnu.org; Sat, 10 Oct 2020 06:04:02 -0400 X-Loop: help-debbugs@gnu.org In-Reply-To: <871ri6y35h.fsf@web.de> Resent-From: Mattias =?UTF-8?Q?Engdeg=C3=A5rd?= Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 10 Oct 2020 10:04:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 43902 X-GNU-PR-Package: emacs Original-Received: via spool by 43902-submit@debbugs.gnu.org id=B43902.160232421220455 (code B ref 43902); Sat, 10 Oct 2020 10:04:02 +0000 Original-Received: (at 43902) by debbugs.gnu.org; 10 Oct 2020 10:03:32 +0000 Original-Received: from localhost ([127.0.0.1]:37005 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kRBit-0005Jr-QV for submit@debbugs.gnu.org; Sat, 10 Oct 2020 06:03:32 -0400 Original-Received: from mail75c50.megamailservers.eu ([91.136.10.85]:37280 helo=mail92c50.megamailservers.eu) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kRBis-0005Ji-AH for 43902@debbugs.gnu.org; Sat, 10 Oct 2020 06:03:31 -0400 X-Authenticated-User: mattiase@bredband.net DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=megamailservers.eu; s=maildub; t=1602324208; bh=gQzjGNmc1q4Ym1TOAs6QsN07V+sl8DUZNPs5Ziz7X9Q=; h=From:Subject:Date:Cc:To:From; b=mk68jYd0ffNWJ5YY19B9D478OE+ugkEZyDTFpS6SF91tZtMl41LqtpDUZiGUB+JPe VzOhwj8iEdFvvONPXTtvBOTJE19dINWBLEA8CgcDgG+lEERI7Usu8bQ2xKyRpPSXAd hzZi+72lMeU4HqwaeRM2DQjalOqLhKbx6ueW+Gtc= Feedback-ID: mattiase@acm.or Original-Received: from [192.168.0.4] (c188-150-171-71.bredband.comhem.se [188.150.171.71]) (authenticated bits=0) by mail92c50.megamailservers.eu (8.14.9/8.13.1) with ESMTP id 09AA3PsD007515; Sat, 10 Oct 2020 10:03:27 +0000 X-Mailer: Apple Mail (2.3445.104.17) X-CTCH-RefID: str=0001.0A782F1F.5F8186F0.000E, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0 X-CTCH-VOD: Unknown X-CTCH-Spam: Unknown X-CTCH-Score: 0.000 X-CTCH-Flags: 0 X-CTCH-ScoreCust: 0.000 X-CSC: 0 X-CHA: v=2.3 cv=aY8fYigt c=1 sm=1 tr=0 a=SF+I6pRkHZhrawxbOkkvaA==:117 a=SF+I6pRkHZhrawxbOkkvaA==:17 a=kj9zAlcOel0A:10 a=b2YmnaVAnGgA:10 a=M51BFTxLslgA:10 a=pGLkceISAAAA:8 a=ZkH730AT_e5f_Da068gA:9 a=CjuIK1q_8ugA:10 X-Origin-Country: SE X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:190207 Archived-At: Michael Heerdegen dixit: > M-x calc RET > d L ;; calc-latex-language > ' ;; calc-algebraic-entry > 1+1/2 RET >=20 > The result is 1, and the Trail shows alg' (1 + 1) / 2. It does not = make > much sense to me to use a precedence rule where addition has higher > precedence than division. I know LaTeX a bit and don't expect such a > result, and it doesn't seem to be documented. Is it intended or a = bug? Indeed, $a+b/c$ is typeset by (La)TeX as (approx.) a + b/c which can = only mean one thing, but Calc incorrectly parses it as (a+b)/c. This = seems to be the consequence of an explicit change: commit fda9b316f84dbc6d68e6cb74b386ee4b92d81b31 Author: Jay Belanger Date: Fri Nov 16 04:15:23 2007 +0000 (math-oper-table): Fix typo. Reduce precedence of "/" for TeX. --- a/lisp/calc/calc-lang.el +++ b/lisp/calc/calc-lang.el - ( "/" / 185 186 ) + ( "/" / 170 171 ) Jay, do you remember the reason for this change?