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From: Sanjoy Mahajan <sanjoy@MIT.EDU>
To: Hans Hagen <pragma@wxs.nl>, ntg-context@ntg.nl
Subject: Re: \triangledown placed too low in Palatino
Date: Mon, 14 Apr 2014 05:30:51 -0400	[thread overview]
Message-ID: <87vbuccl6c.fsf@approx.mit.edu> (raw)
In-Reply-To: <534ABF88.1080005@wxs.nl>

> I can change things but will only do that when all you mathematicians 
> have some agreement about it ...

Otared points out that the distinction between \triangle and
\bigtriangleup comes from plain TeX.  plain.tex has these definitions:

\mathchardef\triangle="0234
\mathchardef\bigtriangleup="2234

So \triangle is a math ord and \bigtriangleup a math bin.

For compatibility, that should probably stay true in ConTeXt too---even
the low placement of \bigtriangledown, which I don't understand but
which does reproduce plain TeX's placement.

> Btw, it is still on my agenda to provide a mechanism for switching
> between math dictionaries (i.e. group symbols in group switch if needed
> different properties) so that one can switch between logic,
> statistics, streetfighting or whatever math.

Hm, like different dialects of a language.  Plain TeX definitely speaks
a pure-mathematician dialect.  It would be interesting to see what
symbol groups are useful in other dialects.

-Sanjoy
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  reply	other threads:[~2014-04-14  9:30 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-10 21:49 Sanjoy Mahajan
2014-04-10 22:28 ` Jannik Voges
2014-04-11  0:28   ` Sanjoy Mahajan
2014-04-11  3:48     ` Aditya Mahajan
2014-04-11  4:06       ` Sanjoy Mahajan
2014-04-11  4:10         ` Aditya Mahajan
2014-04-11  4:12           ` Aditya Mahajan
2014-04-11  5:24         ` Mikael P. Sundqvist
2014-04-11 13:13       ` Otared Kavian
2014-04-13  2:44         ` Sanjoy Mahajan
2014-04-13 16:47           ` Hans Hagen
2014-04-14  9:30             ` Sanjoy Mahajan [this message]
2014-04-15  6:49               ` Hans Hagen
2014-04-15 12:12                 ` Sanjoy Mahajan
2014-04-16  3:54                   ` remove full stop after a title ending with punctuation Peng Zhang

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