sections.md

Sections

Basic example

Let’s begin with a basic example to demonstrate the \section{section title} command, which marks the beginning of a new section called section title. Section numbering is automatic and can be customized, or disabled.

\title{Sections and Chapters}

\section{Introduction}

This is the first section.

\section{Second Section}
This is the second section

This example produces the following output:

Document sectioning

levels
1	\section{section}
2	\subsection{subsection}
3	\subsubsection{subsubsection}

Numbered and unnumbered sections

To get an unnumbered chapter, section, subsection, etc. add an asterisk (*) at the end of the command, before the opening curly brace. These will not go into the table of contents. Here is our first example (above) but this time using \section* instead of \section:

\title{Sections and Chapters}

\section*{Introduction}

This is the first section.

\section*{Second Section}
This is the second section

This example produces the following output:

Start section counter from specific number

\setcounter{section}{number} Sets count for section to contain the value number.

• Note: number can be positive or negative.

\title{Sections and Chapters}

\setcounter{section}{7}

\section{Introduction}

This is the first section.

\setcounter{section}{0}
\section{Second Section}
This is the second section

This example produces the following output:

Unnumbered sections in the table of contents

To add an unnumbered section to the table of contents, use the \addcontentsline command like this:

\addcontentsline{toc}{section}{Title of the section} Here is an example using \addcontentsline:

[[toc]]

\title{Sections and Chapters}

\section{Introduction}
This is the first section (numbered).

\addcontentsline{toc}{section}{Unnumbered Section}
\section*{Unnumbered Section}
An unnumbered section


\section{Second section}
The second numbered section.

This example produces the following output: