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How do I control the space between the equation number and the right margin in the align environment?

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  • @Papiro It is not a duplicate. Sep 22, 2013 at 8:48
  • do you want the position of the equation number changed only for the align environment, or for all numbered displays? Sep 22, 2013 at 12:23
  • since you haven't said what the \gls{...} commands do (there is no example given, and i can't find any reference to that command in the companion), there's not enough information to give a meaningful answer to this question. perhaps it should be closed. regretfully downvoted. Sep 22, 2013 at 13:16
  • No problems. GLS are glossaries commands, When I asked the question, I hadn't identified them as the source. I'll try and submit a minimal reproduceable example later today. Cheers. Sep 22, 2013 at 19:27
  • @barbarabeeton I have posted a different question. tex.stackexchange.com/questions/134587/… Sep 22, 2013 at 21:11

1 Answer 1

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A following example hacks into internals of align to add extra space that can be configured using \alignnumbersep:

\documentclass{article}
\usepackage{amsmath}

\newdimen\alignnumbersep
\setlength{\alignnumbersep}{10mm}

\usepackage{etoolbox}
\makeatletter
\patchcmd{\math@cr@@@align@measure}
     {\df@tag\fi\fi}
     {\df@tag\fi\fi\kern\alignnumbersep}
     {}{}
\patchcmd{\math@cr@@@align}
    {\make@display@tag}
    {\make@display@tag\kern\alignnumbersep}
    {}{}
\makeatother

\begin{document}
\begin{gather}
  \text{gather}
\end{gather}

\begin{align}
  a&=b & c&=d\\
  aa&=bb & cc&=dd
\end{align}
\end{document}

Result

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  • It turns out that whilst the trigger for my question was an unrelated matter (see tex.stackexchange.com/questions/134587/…), this question as it stands and what you have answered is something that I have wanted to know regardless, so I thank you for your answer. Sep 22, 2013 at 21:12

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