\documentclass[12pt]{article}
\usepackage{amsmath}
\title{\LaTeX}
\author{Anton Setzer\thanks{Dept. of Computer Science, Swansea University, Singleton Park, Swansea SA1 4PZ, UK. Email: {\tt a.g.setzer@swan.ac.uk}. This article is based on the example in Wikipedia,
http://en.wikipedia.org/wiki/LaTeX}}
\date{7 October 2011}
\newcommand{\role}{{r\^{o}le}}
\begin{document}
\maketitle
\LaTeX{} is a document preparation system for the \TeX{}
typesetting program. It offers programmable desktop publishing
features and extensive facilities for automating most aspects of
typesetting and desktop publishing, including numbering and
cross-referencing, tables and figures, page layout, bibliographies,
and much more. \LaTeX{} was originally written in 1984 by Leslie
Lamport and has become the dominant method for using \TeX; few
people write in plain \TeX{} anymore. The current version is
\LaTeXe. \LaTeX{} plays an important \role{} in publishing scientific
articles in Science.
% This is a comment; it will not be shown in the final output.
% The following shows a little of the typesetting power of LaTeX:
\begin{align}
E &= mc^2 \\
m &= \frac{m_0}{\sqrt{1-\frac{v^2}{c^2}}}
\end{align}
\end{document}