From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/46875 Path: news.gmane.org!not-for-mail From: Aditya Mahajan Newsgroups: gmane.comp.tex.context Subject: Re: Math alignment problem Date: Mon, 19 Jan 2009 19:37:36 -0500 (EST) Message-ID: References: <20090110175340.GP19367@atos.labs.wmid.amu.edu.pl> <20090110183119.GQ19367@atos.labs.wmid.amu.edu.pl> <20090120000131.GU7622@atos.labs.wmid.amu.edu.pl> Reply-To: mailing list for ConTeXt users NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1232413310 31993 80.91.229.12 (20 Jan 2009 01:01:50 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 20 Jan 2009 01:01:50 +0000 (UTC) To: mailing list for ConTeXt users Original-X-From: ntg-context-bounces@ntg.nl Tue Jan 20 02:03:02 2009 Return-path: Envelope-to: gctc-ntg-context-518@m.gmane.org Original-Received: from ronja.vet.uu.nl ([131.211.172.88] helo=ronja.ntg.nl) by lo.gmane.org with esmtp (Exim 4.50) id 1LP517-0004tq-26 for gctc-ntg-context-518@m.gmane.org; Tue, 20 Jan 2009 02:02:57 +0100 Original-Received: from localhost (localhost [127.0.0.1]) by ronja.ntg.nl (Postfix) with ESMTP id B19A81FD2D; Tue, 20 Jan 2009 02:01:35 +0100 (CET) Original-Received: from ronja.ntg.nl ([127.0.0.1]) by localhost (smtp.ntg.nl [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 32652-01-2; Tue, 20 Jan 2009 02:00:13 +0100 (CET) Original-Received: from ronja.vet.uu.nl (localhost [127.0.0.1]) by ronja.ntg.nl (Postfix) with ESMTP id 720231FC93; Tue, 20 Jan 2009 02:00:13 +0100 (CET) Original-Received: from localhost (localhost [127.0.0.1]) by ronja.ntg.nl (Postfix) with ESMTP id 162BF1FC91 for ; Tue, 20 Jan 2009 02:00:11 +0100 (CET) Original-Received: from ronja.ntg.nl ([127.0.0.1]) by localhost (smtp.ntg.nl [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 32652-01 for ; Tue, 20 Jan 2009 01:59:25 +0100 (CET) Original-Received: from filter1-ams.mf.surf.net (filter1-ams.mf.surf.net [192.87.102.69]) by ronja.ntg.nl (Postfix) with ESMTP id D5EEB1FCA3 for ; Tue, 20 Jan 2009 01:38:29 +0100 (CET) Original-Received: from hellskitchen.mr.itd.umich.edu (smtp.mail.umich.edu [141.211.14.82]) by filter1-ams.mf.surf.net (8.13.8/8.13.8/Debian-3) with ESMTP id n0K0cS6E005644 for ; Tue, 20 Jan 2009 01:38:29 +0100 Original-Received: FROM [192.168.2.8] (c-71-234-195-113.hsd1.ct.comcast.net [71.234.195.113]) BY hellskitchen.mr.itd.umich.edu ID 49751D02.E3756.15128 ; 19 Jan 2009 19:38:27 -0500 In-Reply-To: <20090120000131.GU7622@atos.labs.wmid.amu.edu.pl> User-Agent: Alpine 2.00 (LNX 1167 2008-08-23) X-Bayes-Prob: 0.0001 (Score 0, tokens from: @@RPTN) X-CanIt-Geo: ip=141.211.14.82; country=US; region=MI; city=Ann Arbor; postalcode=48109; latitude=42.2923; longitude=-83.7145; metrocode=505; areacode=734; http://maps.google.com/maps?q=42.2923,-83.7145&z=6 X-CanItPRO-Stream: uu:ntg-context@ntg.nl (inherits from uu:default, base:default) X-Canit-Stats-ID: 167702106 - 57b32aa251a7 X-Scanned-By: CanIt (www . roaringpenguin . com) on 192.87.102.69 X-Virus-Scanned: amavisd-new at ntg.nl X-BeenThere: ntg-context@ntg.nl X-Mailman-Version: 2.1.11 Precedence: list List-Id: mailing list for ConTeXt users List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: ntg-context-bounces@ntg.nl Errors-To: ntg-context-bounces@ntg.nl X-Virus-Scanned: amavisd-new at ntg.nl Xref: news.gmane.org gmane.comp.tex.context:46875 Archived-At: On Tue, 20 Jan 2009, Marcin Borkowski wrote: > Dnia Sat, Jan 10, 2009 at 07:14:58PM -0500, Aditya Mahajan napisał(a): >>>> On Sat, 10 Jan 2009, Marcin Borkowski wrote: >>>> >>>>> Hi all, >>>>> >>>>> I'd like to typeset a system of simultaneous equations. I want it to >>>>> have a brace on the left (like "cases"), but inside I want it to have >>>>> two columns aligned like "align". Also, I'd like to have the vertical >>>>> space between the equations be small (like in cases), not so big as in >>>>> align. >>>>> >>>>> How to do this? > > (answers cut) > > Thank you very much. But one thing still puzzles me: the vertical > distance between the cases. How to increase it? (Shouldn't there be a > parameter for this? But I couldn't find one...) For matrix, the current definition works hard so that you cannot change vertical distance. For simultaneous equations, you need a math strucutre which ConTeXt does not provide. >>From what I understand amsmath hasthere are three kinds of math "strucures" 1. Outer display structures (equation, align, gather, and multline) 2. Inner display structures (aligned, gathered, and multlined (provided by mathtools package)) 3. Inner inline structures (matrix, cases, etc). The first two display structures have \displaystyle set and have "loose" spacing. The last inline structure has no \displaystyle set and has "tight" spacing. So, what you need for simultaneous equations is something from class 2 with the ability to put a brace on the left (empheq package in latex allows you to do this with aligned, etc). Currently, ConTeXt does not provide anything of class 2. It is easy to provide it (one just needs to copy the definitions of mathalign but not set the width of hbox to be textwidth), but everytime I start working on it I get distracted by the bigger problem---ConTeXt is not as good as it can be for outer display. Aditya ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : https://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________