From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/86985 Path: news.gmane.org!not-for-mail From: Aditya Mahajan Newsgroups: gmane.comp.tex.context Subject: Re: \triangledown placed too low in Palatino Date: Fri, 11 Apr 2014 00:12:05 -0400 (EDT) Message-ID: References: <87ha60svmk.fsf@approx.mit.edu> <1FAEB3CA-E8E6-44BB-AE31-0C69D9BC5509@icloud.com> <87eh14so9b.fsf@approx.mit.edu> <878urcse5x.fsf@approx.mit.edu> Reply-To: mailing list for ConTeXt users NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1397189561 16484 80.91.229.3 (11 Apr 2014 04:12:41 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 11 Apr 2014 04:12:41 +0000 (UTC) Cc: Sanjoy Mahajan To: mailing list for ConTeXt users Original-X-From: ntg-context-bounces@ntg.nl Fri Apr 11 06:12:34 2014 Return-path: Envelope-to: gctc-ntg-context-518@m.gmane.org Original-Received: from balder.ntg.nl ([5.39.185.229]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1WYSpN-0001I6-MD for gctc-ntg-context-518@m.gmane.org; Fri, 11 Apr 2014 06:12:33 +0200 Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 52A961029D for ; Fri, 11 Apr 2014 06:12:33 +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 EZUN3NJ0br2d for ; Fri, 11 Apr 2014 06:12:33 +0200 (CEST) Original-Received: from balder.ntg.nl (localhost [IPv6:::1]) by balder.ntg.nl (Postfix) with ESMTP id 3360610226 for ; Fri, 11 Apr 2014 06:12:25 +0200 (CEST) Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 8CDC9101E3 for ; Fri, 11 Apr 2014 06:12:21 +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 7AKo7WM22VUx for ; Fri, 11 Apr 2014 06:12:19 +0200 (CEST) Original-Received: from filter2-til.mf.surf.net (filter2-til.mf.surf.net [194.171.167.218]) by balder.ntg.nl (Postfix) with ESMTP id CEA54101E1 for ; Fri, 11 Apr 2014 06:12:10 +0200 (CEST) Original-Received: from hellskitchen.mr.itd.umich.edu (smtp.mail.umich.edu [141.211.14.82]) by filter2-til.mf.surf.net (8.14.3/8.14.3/Debian-9.4) with ESMTP id s3B4C7Rr032250 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT) for ; Fri, 11 Apr 2014 06:12:09 +0200 Original-Received: FROM adi-thinkpad.local ((null) [135.0.226.162]) By hellskitchen.mr.itd.umich.edu ID 53476B96.B78E0.24230 ; Authuser adityam; 11 Apr 2014 00:12:06 EDT In-Reply-To: User-Agent: Alpine 2.02 (DEB 1266 2009-07-14) X-Bayes-Prob: 0.0001 (Score 0, tokens from: ntg-context@ntg.nl, base:default, @@RPTN) X-CanIt-Geo: ip=141.211.14.82; country=US; region=Michigan; city=Ann Arbor; latitude=42.2734; longitude=-83.7133; http://maps.google.com/maps?q=42.2734,-83.7133&z=6 X-CanItPRO-Stream: uu:ntg-context@ntg.nl (inherits from uu:default, base:default) X-Canit-Stats-ID: 0TLMsc8k4 - 63f803ef6e75 - 20140411 (trained as not-spam) X-Scanned-By: CanIt (www . roaringpenguin . com) on 194.171.167.218 X-BeenThere: ntg-context@ntg.nl X-Mailman-Version: 2.1.14 Precedence: list List-Id: mailing list for ConTeXt users List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ntg-context-bounces@ntg.nl Original-Sender: ntg-context-bounces@ntg.nl Xref: news.gmane.org gmane.comp.tex.context:86985 Archived-At: On Fri, 11 Apr 2014, Aditya Mahajan wrote: > On Fri, 11 Apr 2014, Sanjoy Mahajan wrote: > >>> I cannot say whether the wrong placement is due to the wrong font >>> metrics or the wrong mapping (mathop vs mathord) by ConTeXt. >> >> I tried '\triangle T' (often used as the Laplacian operator, instead of >> writing it out as \nabla^2). That one comes out fine, even though >> \triangledown does not. But they seem to have similar kinds of >> defintions/mappings: >> >> From luatex-math.tex : >> >> \def\triangle {\Umathchar "0"0"0025B3 } >> \def\triangledown {\Umathchar "2"0"0025BD } >> >> So it must be a wrong font metric? > > AFAIU, ConTeXt does not use luatex-math.tex. The mappings are defined in > char-def.lua. > > triangle is defined as a mathord (like nabla) while bigtriangleup is a mathop > (like triangledown). Sorry, bigtriangleup is a mathbin. (As I said, I don't understand how the mathclass of different triangle operators is determined). 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 ___________________________________________________________________________________