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Systems of Equations side by side with numbering

I'd go with the first of the examples below: people expect the number to always be on the same side. \documentclass{article} \usepackage{amsmath} \usepackage{lipsum} % for context \newcommand{\iplus}...
egreg's user avatar
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0 votes
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exercise package: Cannot change first question number

When a new exercise is initialized the counters are set to 0, apparently the first \Question command triggers this initialization. As a workaround you can change the definition of the command \...
Marijn's user avatar
  • 37.2k
1 vote

Custom labelling of equations in appendix section

The easiest way is to add the section Appendix for equation numbering after you declare the start of \appendix. Like this \appendix \numberwithin{equation}{section} Then all equations after that will ...
teddi's user avatar
  • 31
0 votes
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"Undefined control sequence" for \section when using arXiv template - Why is it so?

If you want to use amsart, you should be aware of a few facts. titlesec is not compatible with the class fancyhdr might be compatible, but risky the abstract should go before \maketitle the class ...
egreg's user avatar
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0 votes

"Undefined control sequence" for \section when using arXiv template - Why is it so?

This template seems awful, find another one, or better just start afresh from \documentclass{article} \begin{document} \end{document} and modify as necessary. The error you're seeing is coming from \...
Dai Bowen's user avatar
  • 6,052
2 votes
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How to print verse numbers in header, not line numbers, when using reledmac?

As @Maïeul, the maintainer of reledmac, explains, because of the peculiar structure of numbered paragraphs you should use \doinsidethislinehook to include a sensitive command like \marking. In ...
marquinho's user avatar
  • 1,688
2 votes

Prefixing theorem numbering with letter

Following Bernard's comment: \documentclass{article} \usepackage{amsthm} \newtheorem{corollary}{Corollary} \renewcommand{\thecorollary}{C.\arabic{corollary}} \begin{document} \begin{corollary} \...
mbert's user avatar
  • 4,106
4 votes

Numbering in Align environment not working properly

I suggest you embed an alignat{2} environment in a gather* environment. Both environments are provided by the amsmath package, which is loaded automatically by the mathtools package. I'd further use ...
Mico's user avatar
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