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From: Aditya Mahajan <adityam@umich.edu>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: How to typeset differential (math)?
Date: Wed, 17 Jun 2015 10:25:35 -0400 (EDT)	[thread overview]
Message-ID: <alpine.OSX.2.02.1506171020570.53757@nqv-znpobbx> (raw)
In-Reply-To: <op.x0dnm9fgtpjj8f@lpr>

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On Wed, 17 Jun 2015, Procházka Lukáš Ing. - Pontex s. r. o. wrote:

> Hello,
>
> thanks for the solution: \define\dif{\mathop{}\!\mfunction{d}}

Another alternative is (untested)

\definemathcommand[dif][nolop]{\mfunction{d}\kern\zeropoint}

> Some explanation for \mathop and \mfunction would be appreciated,
> and also explanation why \definemathcommand[dif][nolop]{\mfunction{d}} didn't 
> work...

Roughtly, the above exapnds to

\define\dif{\mathop{\mfunction{d}}\nolimits}

When the argument of \mathop is a single character (d, in this case), 
mathop centers the charater on the 'math-axis'. The rationale is that such 
a behavior is desirable when defining single letter math operators such as 
sum, int, bigcap, bigcup, etc. Adding \kern\zeropoint makes TeX think that 
the argument of \mathop is more than a single character, so it does not 
center d along the math-axis.

Aditya

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      parent reply	other threads:[~2015-06-17 14:25 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-06-17 12:00 Procházka Lukáš Ing. - Pontex s. r. o.
2015-06-17 12:50 ` Manuel Blanco
2015-06-17 13:55   ` Procházka Lukáš Ing. - Pontex s. r. o.
2015-06-17 14:23     ` Manuel Blanco
2015-06-17 14:35       ` Procházka Lukáš Ing. - Pontex s. r. o.
2015-06-17 14:25     ` Aditya Mahajan [this message]

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