includegraphicsで画像の挿入。““\label”“でラベルを貼り、”“\autoref”“で参照する。”\autoref”は参照するものを判別して適切な引用(Table, Figure, sectionなど)をつけてくれるすごいやつ。

\begin{figure}[tb]
  \begin{center}
   \includegraphics[width=9.5cm]{picture/corr_full.pdf}
   \caption{The correlation matrix of the cross section parameters.}
   \label{fig:xsec_corr}
 \end{center}
\end{figure}

\begin{figure}[tb]
  \begin{minipage}{0.50\hsize}
    \centering
		\includegraphics[width=8cm]{picture/flux_cov_ND_nu_mu.pdf}
		%\subcaption{flux cov.}
		%\label{fig:flux_cov}
  \end{minipage}
  \begin{minipage}{0.50\hsize}
    \centering
    \includegraphics[width=8cm]{picture/flux_corr_ND_nu_mu.pdf}
    %\subcaption{flux corr.}
    %\label{fig:flux_corr}
  \end{minipage}
  \caption{ND $\nu_\mu$ part of flux covariance matrix and correlation matrix.}\label{fig:flux_cov_corr}
\end{figure}

\begin{table}[b]
  \begin{center}
    \caption{List of POT.}\label{table:POT_list}
    \begin{tabular}{c|c|c}
      \hline
      run & MC ($10^{20}~\mathrm{POT}$) & Data ($10^{20}~\mathrm{POT}$)\\\hline\hline
      run2 air & 16.75 & 0.36\\
      run2 water & 16.76 & 0.44\\
      run3 air & 30.72 & 1.59\\
      run4 air & 36.02 & 1.79\\
      run4 water & 36.05 & 1.70\\
      run8 air & 44.72 & 4.15\\
      run8 water & 36.04 & 1.58\\\hline\hline
      Total & 217.07 & 11.61\\\hline
    \end{tabular}
  \end{center}
\end{table}