% Latex example from wikipedia
\documentclass[a4paper]{article}
\usepackage[dutch]{babel}
\begin{document}
\section{Example paragraph}
A formula follows:
% a comment
\[
\pi = \sqrt{6\sum_{n=1}^{\infty}\frac{1}{n^2}}
   = \left(\int_{-\infty}^{+\infty}e^{-x^2}\,dx\right)^2
\]
\end{document} % End of document
