\begin{tabular}{|ccc|cc|cc|} \hline
\multicolumn{3}{|c||}{Dim \& Density, \& $\kappa(A)$} & \multicolumn{2}{|c|}{\% Reduction in $\kappa$} & \multicolumn{2}{|c|}{CPU Time}\cr\cline{1-3}\cline{3-7}
  $n$ & density & $\kappa(A)$ & Alg 2.2 & Alg. C.1 & Alg. 2.2 & Alg C.1 \cr\hline
50000 & 3.8e-05 & 1.0e+11 & 1.7e+01 & 7.7e+00 & 244.577 & 74.798 \cr\hline
60000 & 3.2e-05 & 1.2e+11 & 1.5e+01 & 6.5e+00 & 400.467 & 103.404 \cr\hline
70000 & 2.7e-05 & 1.4e+11 & 1.4e+01 & 5.6e+00 & 492.698 & 123.284 \cr\hline
80000 & 2.4e-05 & 1.6e+11 & 1.1e+01 & 5.0e+00 & 436.111 & 198.894 \cr\hline
90000 & 2.1e-05 & 1.8e+11 & 1.0e+01 & 4.3e+00 & 550.245 & 223.299 \cr\hline
100000 & 1.9e-05 & 2.0e+11 & 1.2e+01 & 4.0e+00 & 986.187 & 250.367 \cr\hline
110000 & 1.7e-05 & 2.2e+11 & 1.1e+01 & 3.7e+00 & 1162.321 & 293.284 \cr\hline
120000 & 1.6e-05 & 2.4e+11 & 1.1e+01 & 3.4e+00 & 1172.119 & 332.887 \cr\hline
130000 & 1.5e-05 & 2.6e+11 & 8.5e+00 & 3.1e+00 & 1274.404 & 386.352 \cr\hline
140000 & 1.4e-05 & 2.8e+11 & 9.1e+00 & 2.9e+00 & 1500.467 & 480.042 \cr\hline
150000 & 1.3e-05 & 3.0e+11 & 8.7e+00 & 2.7e+00 & 1677.360 & 498.512 \cr\hline
\end{tabular}
