\begin{table}[htbp]
\centering
%\caption{DADOS-FONTE4-NU.}
\caption{Resultados: CRE com FRE, Poisson, $T=\dfrac{-1}{5}e^{3x} + 3x + 2$, $m=1$, malha não uniforme.}
\begin{tabular}{ccccc}
\toprule
$N$ & $l_1$ & $l_{\infty}$ & $p_{E}^{*}$ - $l_1$ & $p_{E}^{*}$ - $l_{\infty}$
\\ \midrule
  11&&&&\\
  21&2.3148673857E-05&1.2670726428E-04&&\\
  41&1.5922274256E-06&1.3173570470E-05&3.8618112237E+00&3.2657809169E+00\\
  81&1.0850333555E-07&1.4042883776E-06&3.8752351188E+00&3.2297352806E+00\\
 161&8.5101850590E-09&3.1615476258E-07&3.6724050792E+00&2.1511363730E+00\\
 321&4.8313350811E-10&1.5687991403E-08&4.1386966839E+00&4.3328983974E+00\\
 641&3.9950500774E-11&7.3618880704E-09&3.5961364231E+00&1.0915129297E+00\\
1281&2.0226877089E-12&1.8917429487E-10&4.3038680887E+00&5.2822878426E+00\\
2561&1.3704491138E-13&4.0993728432E-11&3.8835529280E+00&2.2062409516E+00\\
5121&1.0138412157E-14&1.1809853987E-11&3.7567451351E+00&1.7954120830E+00\\
10241&5.5071211436E-16&4.1034648857E-13&4.2023895651E+00&4.8470047098E+00\\
20481&3.8510373824E-17&1.1593992035E-13&3.8379793120E+00&1.8234652083E+00\\
40961&2.3597073549E-18&9.5677380599E-15&4.0285672713E+00&3.5990556966E+00\\
81921&1.8257152383E-19&3.7402357195E-15&3.6920742842E+00&1.3550486974E+00\\
163841&9.4403532326E-21&8.8956534586E-17&4.2734771092E+00&5.3938847980E+00\\
\bottomrule
\end{tabular}
%\label{tab:addlabel}
\end{table}
