[Tex/LaTex] Why the table of contents duplicate the sections

syntaxtable of contents

\documentclass[11pt]{article}
\usepackage[utf8]{inputenc}

\begin{document}

\tableofcontents
\section{Chapter 5}
\subsection{Section 1}

\end{document}

I am trying to create a table of contents but it comes out like this

I only want the top part to display, I don't know why it's duplicating. Also, how can I delete the numbers on the left side of the titles? And how can I set up the page number for each section and title?

Best Answer

Among other things, your document setup suffers from mis-using of the directives \section and \subsection to generate headers that are labeled "chapter" and "section", respectively. To reduce the confusion that will inevitably follow, you may want to switch to the report document class, issue the instruction \setcounter{secnumdepth}{-1} in the preamble, and use the directives \chapter and \section to generate the corresponding headers.

\documentclass{report} % not 'article'
\setcounter{secnumdepth}{-1}

\begin{document}
\tableofcontents

\chapter{Chapter 5}
\section{Section 1}
\end{document}

If you do not want to have a page break between the table of contents and the first header, use the following code instead:

\documentclass{report} % not 'article'
\setcounter{secnumdepth}{-1}

\begin{document}
\tableofcontents

\begingroup
\let\clearpage\relax % locally disable '\clearpage'
\chapter{Chapter 5}
\endgroup
\section{Section 1}
\end{document}

Remarks

You may use the \addcontentsline command. The syntax is defined as follows

\addcontentsline{TABLE}{LEVEL}{TITLE}

TABLE stands for the type of list, where you want to add the item, possible are:
- toc: Table of contents
- lof: List of figures
- lot: List of tables
LEVEL will be the level at which the line will appear in the list. Possible are:
- For toc: chapter, section, subsection
- For lof: figure
- For lot: table
TITLE is your heading.

For example

\addcontentsline{toc}{chapter}{Appendix}

will add Appendix to your table of contents, but will NOT typeset the heading within the document. You need to use \chapter*{Appendix} for this.

Implementation

\documentclass{tufte-book}
\setcounter{secnumdepth}{3}
\setcounter{tocdepth}{3}
\begin{document}
\tableofcontents
\chapter{Introduction}
\section{Historical Overview}
\chapter{Implementation}
\section{The CUDA Model}
\section{A Lattice Boltzmann Solver}
\chapter*{Appendix}
\addcontentsline{toc}{chapter}{Appendix}
\section*{The Mathematical Background}
\addcontentsline{toc}{section}{The Mathematical Background}
\subsection*{Proofs}
\addcontentsline{toc}{subsection}{Proofs}
\end{document}

Output

[Tex/LaTex] Change title of Table of Contents

Typo: it is called \captionsenglish not \captions\english

Best Answer

Related Solutions

[Tex/LaTex] Add an item in the table of contents

Remarks

Implementation

Output

[Tex/LaTex] Change title of Table of Contents

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