# Getting section numbering to start at 0

   \documentclass[11pt,a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage{lipsum}
\usepackage{tocloft}
\begin{document}

\tableofcontents
\thispagestyle{empty}
\newpage

\section{Preface} %want section number to be 0
\thispagestyle{empty}
\pagenumbering{roman}
\lipsum[1-3]
\newpage

\section{Start From Here}
\lipsum[1-5]

\section{And So On...}
\lipsum[1-5]
\end{document}


How do I get section numbering to start at 0?

Edit: I know I can do \section*{Preface}, but that removes it from the ToC, which isn't what I want.

-
Use \section*{Preface} \addcontentsline{toc}{section}{Preface}. –  Harish Kumar Apr 8 '13 at 2:34
If you really want a 0 section, add this to the preamble: \setcounter{section}{-1}; otherwise, do as Harish has suggested. –  Gonzalo Medina Apr 8 '13 at 2:37
@GonzaloMedina I have \thispagestyle{empty} because I want to clear out the header and footer, but I want to include a roman numeral on the preface. Is this possible? –  AlanH Apr 8 '13 at 2:43
@AlanH sure; please give me some minutes. –  Gonzalo Medina Apr 8 '13 at 2:44
@AlanH Your wish with the pagenumbering is a separate question … –  Speravir Apr 8 '13 at 2:48

Just insert \setcounter{section}{-1} in the preamble.

\documentclass[11pt,a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage{lipsum}
\usepackage{tocloft}
\setcounter{section}{-1}

\begin{document}
\tableofcontents
\newpage
\thispagestyle{empty}
\section{Preface} %want section number to be 0
\lipsum[1-3]
\newpage
\section{Start From Here}
\lipsum[1-5]
\section{And So On...}
\lipsum[1-5]
\end{document}

-
Why do I need to set the counter to -1, rather than 0? –  user27182 Oct 7 '14 at 15:16
The default is 0. Each chapter increments the number and is labelled with the incremented number. So -1 produces 0 as the first label. –  Martin Brandenburg Mar 14 at 23:39