# Switching between single- and multi-column format

I'm trying to create a pdf for a journal where the authors are in multiple column format but the rest of the document/text is not. How can I get this to work? It auto formats the rest of my document into two columns. I'm exporting it to pdf and I'm using TeXworks.

\documentclass[10pt,twocolumn]{article}

\title{Article Title}
\author{
First Author\\
Department\\
school\\
email@edu
\and
Second Author\\
Department\\
school\\
email@edu
\and
Third Author\\
Department\\
school\\
email@edu
\and
Fourth Author\\
Department\\
school\\
email@edu
}
\date{\today}

\begin{document}

\maketitle

\begin{abstract}
This part should be in a single column.
\end{abstract}

\section{Introduction}
\ldots

\end{document}

-
Just remove the twocolumn from your first line. Is that what you mean? –  Jake Oct 4 '11 at 2:29
no i want the authors to be multiple columnn , i have 8 in my actual paperfrom all different universities/departments it would take a whole page of just authors if i did it in single colummn , i want the rest of the document to be single column however –  pyCthon Oct 4 '11 at 2:31
Welcome to TeX-SX! I've edited your code lightly by removing two spurious lines and by changing the tags. If you haven't already done so, please consider registering with the site so that you can edit your own question (if you desire to do so) and provide comments on answers. –  Mico Oct 4 '11 at 2:35
@Mico I'm not sure I agree with you on that reading of the question (and from his answer I think Jake also reads it differently). –  Caramdir Oct 4 '11 at 3:15
@Mico: The first sentence says "the authors are in multiple column format but the rest of the document/text is not." –  Caramdir Oct 4 '11 at 3:22

The authors of an article document are always set in multiple columns, regardless of the twocolumn option. Removing twocolumn from your document options will yield this result:

\documentclass[10pt]{article}
\usepackage{lipsum}

\title{Article Title}
\author{
First Author\\
Department\\
school\\
email@edu
\and
Second Author\\
Department\\
school\\
email@edu
\and
Third Author\\
Department\\
school\\
email@edu
\and
Fourth Author\\
Department\\
school\\
email@edu\\
\and
Fifth Author\\
Department\\
school\\
email@edu
\and
Sixth Author\\
Department\\
school\\
email@edu
\and
Seventh Author\\
Department\\
school\\
email@edu
\and
Eighth Author\\
Department\\
school\\
email@edu
}
\date{\today}

\begin{document}

\maketitle

\begin{abstract}
CFD \ldots
\end{abstract}

\section{Introduction}
\lipsum

\section{future research exc}\label{previous work}

\end{document}

-

(Remark -- This answer is edited radically from the one I posted initially, as the thrust of the OP's question became clear. The first paragraph is, in its contents, identical to Jake's answer.)

Just remove the twocolumn option from the \documentclass instruction, and the rest of your document will typeset in single-column format. With the code you provide, the author block will automatically be typeset in the most space-saving manner possible.

Incidentally, unless all of the paper's authors have different affiliations, you may want to look into using the authblk package to simplify references to institutional affiliations shared among some of the contributors.

-
thanks for all the help , i also like the lipsum feature –  pyCthon Oct 4 '11 at 13:54