% source file for test.dvi
\documentclass{article}
\pagestyle{empty}
\begin{document}
This is a \LaTeX\ test document\\
for testing matplotlib's dviread

\noindent\rule{\textwidth}{1pt}

\[ \int\limits_0^{\frac{\pi}{2}} \Bigl(\frac{x}{\sin x}\Bigr)^2\,\mathrm{d}x \]

\special{Special!}

\newpage
another page

\end{document}