[texhax] [tug support aka texhax] formatting equation numbering

Donald Arseneau asnd at triumf.ca
Tue May 27 06:05:34 CEST 2014

On Mon, May 26, 2014 5:06 am, Makai Mihály wrote:

> Thanks, it has worked. How can one put the equation number in bold?

>>> Is it possible to change the style of equation numbering in the
>>> amsbook.cls package?
>> So copy the definition used by amsbook.cls, which is to be
>> found in amsmath.sty, and redefine it slightly differently.

Yes, in the way you would normally make something bold faced.

The tag (or number) itself is the parameter #1; the parentheses
or brackets are there to be seen; the scarey-looking commands
\ignorespaces ... \unskip\@@italiccorr are details that are not
terribly important (\ignorespaces ... \unskip allows you to
include spurious spaces in the tag (number) that are not printed,
as with: \tag { X }, and \@@italiccorr prevents collisions if
the tag is slanted or italic.)

So if you want just the number bold, then


and if you want bold parentheses


For clarity, those are approximately


It is tricky reading those braces and parentheses.

If all you want to change is the font, then maybe it is better
to redefine \maketag@@@, where the font is normally (no pun
intended) declared, changing

\def\maketag@@@#1{\hbox{\m at th\normalfont#1}}


\def\maketag@@@#1{\hbox{\m at th\normalfont\bfseries#1}}

Donald Arseneau, TRIUMF CMMS, asnd at triumf.ca

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