# Sectioning - Numbering

I use the following commands

\titleformat*{\section}{\Large\sffamily}
\titleformat*{\subsection}{\Large\sffamily}


In order to split my book into sections. However, it shows the following

1 Section's Title

I want the form with point after the number

1. Section's Title

How can I get this?

A solution with titlesec: add to your preamble

\titlelabel{\thetitle.\quad}



1..1 Test

Therefor you have also have to redefine the lower levels as show in the example below

\documentclass[12pt,a4paper]{article}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}

\renewcommand\thesection{\arabic{section}.}
\renewcommand{\thesubsection}{\arabic{section}.\arabic{subsection}.}
\renewcommand{\thesubsubsection}{\arabic{section}.\arabic{subsection}.\arabic{subsection}.}

\begin{document}
\section{test}
\subsection{test}
\section{foobar}
\end{document}


Edit:

Looks like you're using the titlesec package. In this case one would use something like this, to redefine the numbering:

\titleformat{\section}{\Large\sffamily}{\thesection.}{1em}{}
\titleformat{\subsection}{\Large\sffamily}{\thesubsection.}{1em}{}
\titleformat{\subsubsection}{\Large\sffamily}{\thesubsubsection.}{1em}{}

• This messes up cross-references, which will also have the final dot . – Bernard Jan 13 '16 at 14:08