From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "Lennart Borgman (gmail)" Newsgroups: gmane.emacs.help Subject: Re: Using `eval-expression' for math Date: Thu, 03 Apr 2008 15:53:02 +0200 Message-ID: <47F4E13E.90809@gmail.com> References: <8763uz3xss.fsf@newsguy.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1207230823 6906 80.91.229.12 (3 Apr 2008 13:53:43 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 3 Apr 2008 13:53:43 +0000 (UTC) Cc: help-gnu-emacs@gnu.org To: reader@newsguy.com Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Thu Apr 03 15:54:15 2008 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1JhPtL-0001dK-Am for geh-help-gnu-emacs@m.gmane.org; Thu, 03 Apr 2008 15:54:11 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1JhPsj-0002pu-0U for geh-help-gnu-emacs@m.gmane.org; Thu, 03 Apr 2008 09:53:33 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1JhPsQ-0002pF-Jx for help-gnu-emacs@gnu.org; Thu, 03 Apr 2008 09:53:14 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1JhPsN-0002om-Vr for help-gnu-emacs@gnu.org; Thu, 03 Apr 2008 09:53:13 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1JhPsN-0002oj-NL for help-gnu-emacs@gnu.org; Thu, 03 Apr 2008 09:53:11 -0400 Original-Received: from ch-smtp01.sth.basefarm.net ([80.76.149.212]) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1JhPsN-0006qa-5I for help-gnu-emacs@gnu.org; Thu, 03 Apr 2008 09:53:11 -0400 Original-Received: from c83-254-150-27.bredband.comhem.se ([83.254.150.27]:65413 helo=[127.0.0.1]) by ch-smtp01.sth.basefarm.net with esmtp (Exim 4.68) (envelope-from ) id 1JhPsI-0006Ud-4W; Thu, 03 Apr 2008 15:53:06 +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: <8763uz3xss.fsf@newsguy.com> X-Antivirus: avast! (VPS 080402-0, 2008-04-02), Outbound message X-Antivirus-Status: Clean X-Originating-IP: 83.254.150.27 X-Scan-Result: No virus found in message 1JhPsI-0006Ud-4W. X-Scan-Signature: ch-smtp01.sth.basefarm.net 1JhPsI-0006Ud-4W 2f785f275982606183421949832f9820 X-detected-kernel: by monty-python.gnu.org: Linux 2.6? (barebone, rare!) X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:53014 Archived-At: reader@newsguy.com wrote: > Can someone show me how to do math with the eval-expression tool? > > (+ 2 2) and such simple problems I can do of course but when it comes > to combining things like: > > 52 * 32 / 12 > > Trying (* 52 32 ( / 12)) > > or > (/ 12 ( * 52 32 )) > > Goes nowhere fast, and from there I can't really imagine how else to > arrange the parens. Just think "inner first" and watch for the argument order of course: (/ (* 52 32) 12)