From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "Lennart Borgman (gmail)" Newsgroups: gmane.emacs.devel Subject: Re: In CVS Emacs, calc-eval gives multiplication higher precidence than division Date: Sun, 07 Sep 2008 23:07:05 +0200 Message-ID: <48C44279.7030200@gmail.com> References: <878wu3j4k2.fsf@gmail.com> <86wshn3df0.fsf@blue.stonehenge.com> <48C43ADA.1070001@gmail.com> <86sksb3d53.fsf@blue.stonehenge.com> <48C43CB7.4060505@gmail.com> <86od2z3ck4.fsf@blue.stonehenge.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1220821653 30975 80.91.229.12 (7 Sep 2008 21:07:33 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 7 Sep 2008 21:07:33 +0000 (UTC) Cc: emacs-devel@gnu.org To: "Randal L. Schwartz" Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sun Sep 07 23:08:28 2008 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 1KcRUg-0004CH-Q8 for ged-emacs-devel@m.gmane.org; Sun, 07 Sep 2008 23:08:27 +0200 Original-Received: from localhost ([127.0.0.1]:60696 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1KcRTh-000515-0H for ged-emacs-devel@m.gmane.org; Sun, 07 Sep 2008 17:07:25 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1KcRTa-0004vo-Gi for emacs-devel@gnu.org; Sun, 07 Sep 2008 17:07:18 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1KcRTY-0004rB-Ek for emacs-devel@gnu.org; Sun, 07 Sep 2008 17:07:17 -0400 Original-Received: from [199.232.76.173] (port=35237 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1KcRTY-0004qq-9l for emacs-devel@gnu.org; Sun, 07 Sep 2008 17:07:16 -0400 Original-Received: from ch-smtp02.sth.basefarm.net ([80.76.149.213]:41161) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1KcRTX-0006qH-KC for emacs-devel@gnu.org; Sun, 07 Sep 2008 17:07:15 -0400 Original-Received: from c83-254-151-87.bredband.comhem.se ([83.254.151.87]:64985 helo=[127.0.0.1]) by ch-smtp02.sth.basefarm.net with esmtp (Exim 4.68) (envelope-from ) id 1KcRTU-0004c6-7K; Sun, 07 Sep 2008 23:07:14 +0200 User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.9) Gecko/20071031 Thunderbird/2.0.0.9 Mnenhy/0.7.5.666 In-Reply-To: <86od2z3ck4.fsf@blue.stonehenge.com> X-Enigmail-Version: 0.95.7 X-Antivirus: avast! (VPS 080907-0, 2008-09-07), Outbound message X-Antivirus-Status: Clean X-Originating-IP: 83.254.151.87 X-ACL-Warn: Too high rate of unknown addresses received from you X-Scan-Result: No virus found in message 1KcRTU-0004c6-7K. X-Scan-Signature: ch-smtp02.sth.basefarm.net 1KcRTU-0004c6-7K 86a4af5102b157e4d84b258cfa61db45 X-detected-kernel: by monty-python.gnu.org: Linux 2.6? (barebone, rare!) 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:103652 Archived-At: Randal L. Schwartz wrote: >>>>>> "Lennart" == Lennart Borgman (gmail) writes: > > Lennart> More seriously: Where do you get those rules from? The notation > > Lennart> a b / c d > > Lennart> does not look like a standard math notation. > > You sound serious, or perhaps you've only seen math in the computer era. No, I got my knowledge in that area from math. Of course there may be different notation used in different math books, but for basic math calculations with numbers I think you should use the standard notation for just that. If some algebra books use "simplified notation" the best thing to do might be to burn them. There is no need to complicate things with unneeded extra notations that makes it hard to read the books. Algebra is not so much about that. (But of course, sadly enough I have seen books using their own subfield notation.) > What > do you get when you run: > > a b \div c d > > through LaTeX? I never use LaTeX so I do not know. But why do you refer to LaTeX here? > I can't type it in ASCII, but that's what I'm talking about. > And in ASCII, we wrote it like "a b / c d".