\begin{table}[htbp]
\centering
\caption{DADOS-INI6-Laplace2DNU.}
\begin{tabular}{ccccc}
\toprule
$N$ & $l_1$ & $l_{\infty}$ & $p_{E}^{*}$ - $l_1$ & $p_{E}^{*}$ - $l_{\infty}$
\\ \midrule

 129&7.7935537862E-06&5.6052674755E-05&&\\
 257&1.9482132833E-06&1.4013585408E-05&2.0001297064E+00&1.9999570982E+00\\
 513&4.8702689435E-07&3.5033524265E-06&2.0000782797E+00&2.0000180886E+00\\
\bottomrule
\end{tabular}
%\label{tab:addlabel}
\end{table}
