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For a list of mathematical constants see Table~\ref{constants}.

\begin{table}
\begin{center}
\begin{tabular}{|c|l|}
\hline
symbol & value \\
\hline
$\pi$ & 3.14159\,26535\,89793\,\dots \\
$e$ & 2.71828\,18284\,59045\,\dots \\
$\gamma$ & 0.57721\,56649\,01532\,\dots \\
\hline
\end{tabular}
\end{center}
\caption{Mathematical constants}
\label{constants}
\end{table}

\end{document}
