From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/68721 Path: news.gmane.org!not-for-mail From: Aditya Mahajan Newsgroups: gmane.comp.tex.context Subject: Re: math: too big space between function and argument Date: Wed, 25 May 2011 11:54:32 -0400 (EDT) Message-ID: References: <1306235645.4255.17.camel@mattotaupa> <1306331537.10056.72.camel@mattotaupa> 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: dough.gmane.org 1306338931 28936 80.91.229.12 (25 May 2011 15:55:31 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Wed, 25 May 2011 15:55:31 +0000 (UTC) To: mailing list for ConTeXt users Original-X-From: ntg-context-bounces@ntg.nl Wed May 25 17:55:24 2011 Return-path: Envelope-to: gctc-ntg-context-518@m.gmane.org Original-Received: from balder.ntg.nl ([195.12.62.10]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1QPGQd-0001Rd-M0 for gctc-ntg-context-518@m.gmane.org; Wed, 25 May 2011 17:55:23 +0200 Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id CAA41CAD5B; Wed, 25 May 2011 17:55:22 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at balder.ntg.nl Original-Received: from balder.ntg.nl ([127.0.0.1]) by localhost (balder.ntg.nl [127.0.0.1]) (amavisd-new, port 10024) with LMTP id ZGsiWWJ7SqjP; Wed, 25 May 2011 17:55:19 +0200 (CEST) Original-Received: from balder.ntg.nl (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 0D2B6CAD54; Wed, 25 May 2011 17:55:19 +0200 (CEST) Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id B174ACAD54 for ; Wed, 25 May 2011 17:55:17 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at balder.ntg.nl Original-Received: from balder.ntg.nl ([127.0.0.1]) by localhost (balder.ntg.nl [127.0.0.1]) (amavisd-new, port 10024) with LMTP id CuI1oVK-imxW for ; Wed, 25 May 2011 17:55:06 +0200 (CEST) Original-Received: from filter3-til.mf.surf.net (filter3-til.mf.surf.net [194.171.167.219]) by balder.ntg.nl (Postfix) with ESMTP id 9E450CAD3A for ; Wed, 25 May 2011 17:55:06 +0200 (CEST) Original-Received: from hackers.mr.itd.umich.edu (smtp.mail.umich.edu [141.211.14.81]) by filter3-til.mf.surf.net (8.14.3/8.14.3/Debian-5+lenny1) with ESMTP id p4PFt2Op022622 for ; Wed, 25 May 2011 17:55:05 +0200 Original-Received: FROM adi-netbook (bas3-montreal02-1096681357.dsl.bell.ca [65.94.7.141]) By hackers.mr.itd.umich.edu ID 4DDD2655.F3E16.25657 ; Authuser adityam; 25 May 2011 11:55:02 EDT In-Reply-To: <1306331537.10056.72.camel@mattotaupa> User-Agent: Alpine 2.02 (LNX 1266 2009-07-14) X-Bayes-Prob: 0.0001 (Score 0, tokens from: @@RPTN) X-CanIt-Geo: ip=141.211.14.81; 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: 0eELPT3TS - e76cda5399d6 - 20110525 X-Scanned-By: CanIt (www . roaringpenguin . com) on 194.171.167.219 X-BeenThere: ntg-context@ntg.nl X-Mailman-Version: 2.1.12 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 Xref: news.gmane.org gmane.comp.tex.context:68721 Archived-At: On Wed, 25 May 2011, Paul Menzel wrote: > On Di, 2011-05-24 at 09:56 -0400, Aditya Mahajan wrote: >> On Tue, 24 May 2011, Paul Menzel wrote: > >>> to markup the probability measure and the parenthesis around the >>> argument, I defined the following command. >>> >>> \define[1]\P{{\mathbf P}\left( #1 \right)} >>> >>> Unfortunately the space between the P and the left ( is a little big in >>> my opinion. Is that correct or should/can I fix that somehow? >> >> Getting these spaces is tricky; especially if you consider spaces before >> and after the definition. Choose your pick: >> >> \starttext >> \startformula >> A{\mathbf P}\left( ABC \right)B \quad >> A\mathop{\kern\zeropoint\mathbf P}\left( ABC \right)B \quad >> A{\mathbf P}\mathopen{}\left( ABC \right)\mathclose{}B \quad >> A\mathop{\kern\zeropoint\mathbf P}\mathopen{}\left( ABC \right)\mathclose{}B \quad >> \stopformula >> \stoptext > > That looks tricky and complex. But can be easily hidden behind a macro. > Could you explain the advantage over `\!` which Wolfgang suggested at > least for the space after the definition. \! only corrects the space between the P and (, not the spacing before P, and the space after ). Moreover, some of the math spacing rules change in \scriptstyle and \scriptscriptstyle; using \mathop, \mathopen, and \mathclose means that those rules are followed. > In addition, I think AMSTeX defines a command `\DeclareMathOperator` [1] > which takes care of these things No. \DeclareMathOperator is just a fancy wrapper around \mathop{\operatorfont ...}. A similar result can be achieved in ConTeXt using \declaremathcommand [...] [op] [\mfunction ...] For defining user macros, I prefer \mathop{\mfunction{...}}. 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 : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________