\end{equation}
\begin{figure}
\centering
- \subfloat[Converted relation.]{%
- \includegraphics[width=.5\linewidth]{fig/file}\label{fig:r1}}%
\subfloat[Real relation.]{%
- \includegraphics[width=.5\linewidth]{fig/file3}\label{fig:r2}}
- \label{fig:rel}
+ \includegraphics[width=.5\linewidth]{fig/file3}\label{fig:r2}}%
+ \subfloat[Converted relation.]{%
+ \includegraphics[width=.5\linewidth]{fig/file}\label{fig:r1}}
\caption{The energy and performance relation}
\end{figure}
Then, we can model our objective function as finding the maximum distance