\begin{tabular}{crr|rrr|rrr|rrr|rrr}
\multicolumn{3}{c}{} & \multicolumn{3}{c}{Bisection} & \multicolumn{3}{c}{False Position} & \multicolumn{3}{c}{Newton Raphson} & \multicolumn{3}{c}{Secant}\\
$f$ & $a$ & $b$ & $I$ & $x$ & $f(x)$ & $I$ & $x$ & $f(x)$ & $I$ & $x$ & $f(x)$ & $I$ & $x$ & $f(x)$\\
\hline
f1 & -1.000000 & 0.000000 & 20 & -0.929837 & 1.564530e-07 & 6 & -0.929837 & 1.100318e-07 & 5 & -0.929837 & 0.000000e+00 & 7 & -0.929837 & 2.791980e-10\\
f2 & 2.000000 & 3.000000 & 19 & 2.498755 & 7.070456e-07 & 2 & 2.498756 & 9.697914e-07 & 5 & 2.498756 & 0.000000e+00 & 6 & 2.498756 & 5.012699e-09\\
f3 & 0.000000 & 1.000000 & 18 & 0.601347 & 4.825563e-07 & 8 & 0.601347 & 4.480312e-07 & 7 & 0.601347 & 2.220446e-16 & 8 & 0.601347 & 1.633400e-10\\
f4 & 1.000000 & 2.000000 & 19 & 1.463056 & 6.147964e-07 & 5 & 1.463055 & 9.453087e-08 & 7 & 1.463056 & 8.881784e-16 & 8 & 1.463055 & 1.278058e-07\\
f5 & 1.000000 & 2.000000 & 19 & 1.570796 & 4.930988e-07 & 5 & 1.570796 & 7.479757e-07 & 6 & 1.570796 & 1.110223e-16 & 7 & 1.570796 & 2.239831e-09\\
\end{tabular}
