\begin{table}[htbp]
\centering
\caption{DADOS-M7-Laplace2DNU.}
\begin{tabular}{ccccc}
\toprule
$N$ & $l_1$ & $l_{\infty}$ & $p_{E}^{*}$ - $l_1$ & $p_{E}^{*}$ - $l_{\infty}$
\\ \midrule

 257&1.9336595268E-06&1.4013585408E-05&&\\
 513&6.3515112080E-11&1.6594901004E-08&1.4893874375E+01&9.7218703814E+00\\
\bottomrule
\end{tabular}
%\label{tab:addlabel}
\end{table}
