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I am using chapters. I want to include one section (a page or two) that does not have a chapter number, and that does not increment the chapter counter. I've tried includeing it, without using chapter, and the section didn't show up at all. How can I include a chapter-less section in a chaptered document?

  • Most likely your section was on the next page, since \include uses a \clearpage 'inevitably', so the content of your external file was shifted the next page – user31729 Apr 16 '16 at 12:51
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For example, use \counterwithout{section}{chapter} to remove chapter counter output in front of the section number (this does remove the section counter also from the reset list!)

Later on, it's possible to use \counterwithin{section}{chapter} to restore the usual setup.

\documentclass{book}

\usepackage{chngcntr}

\begin{document}
\chapter{First}

\counterwithout{section}{chapter}

\section{Has no chapter number}
\section{Other section}


\counterwithin{section}{chapter}
\chapter{Second}

\section{Foo}
\end{document}

Here's a package-less approach, just using a redefinition of \thesection, but storing the original version before with \let\latexthesection\thesection.

\documentclass{book}

\let\latexthesection\thesection



\begin{document}
\chapter{First}

\renewcommand{\thesection}{\arabic{section}}

\section{Has no chapter number}
\section{Other section}


\renewcommand{\thesection}{\latexthesection}
\chapter{Second}

\section{Foo}
\end{document}

enter image description here

Update with Interlude headings

\documentclass{book}

\let\latexthesection\thesection

\usepackage{blindtext}

\begin{document}
\chapter{First}

\renewcommand{\thesection}{\arabic{section}}
\markboth{Interlude}{Interlude}
\section{Has no chapter number}
\section{Other section}

\renewcommand{\thesection}{\latexthesection}
\chapter{Second}

\section{Foo}

\blindtext[5]
\end{document}
  • That works, thanks! How can I add a chapter-like header to that un-chaptered section? I'd like it to look like the rest of the "Chapter x" headings in the document, but saying "interlude" or something like that. – horse hair Apr 16 '16 at 12:51
  • @horsehair: That's another question ;-) – user31729 Apr 16 '16 at 12:52
  • @horsehair: See the update – user31729 Apr 16 '16 at 12:59

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