# Chapter number and chapter title in one line

This is what I want:

Chapter 1 : Introduction

but I always get:

Chapter 1

Introduction

How do I do this?

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– Stefan Kottwitz Aug 6 '11 at 12:43
:D Thanks for reference, yups :) – Verly Aug 8 '11 at 4:31

If you use a KOMA-class you will not need the package titlesec:

\documentclass[chapterprefix=false]{scrreprt}
\makeatletter
\renewcommand*{\chapterformat}{%
\mbox{\chapapp~\thechapter\autodot:\enskip}%
}
\makeatother
\begin{document}
\chapter{A chapter}
\section{A section}
\end{document}

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with other classes, it is still possible to redefine the chapter look without using titlesec. – pluton Aug 6 '11 at 15:23
@pluton: Of course but the standard classes don't allow it in such an easy way :-). – Marco Daniel Aug 6 '11 at 15:46
I know tex.stackexchange.com is really nice place, Thanks Marco – Verly Aug 8 '11 at 4:30

You don't say which document class you are using, but for the standard classes, you can adjust these parameters easily with the titlesec package.

\documentclass{book}
\usepackage{titlesec}
\titleformat{\chapter}[hang]
{\normalfont\huge\bfseries}{\chaptertitlename\ \thechapter:}{1em}{}

\begin{document}
\chapter{A chapter}
\section{A section}
\end{document}


You can change the font size as needed, and if you need to change the spacing, there is also a command for that.

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Great, Thanks Alann Munn :) – Verly Aug 8 '11 at 4:29