[math]\displaystyle{ \begin{eqnarray*} \latex \\ testing... \end{eqnarray*} \\ \begin{table}[h] \caption{표} \centering \begin{tabular}[c|c|c] \hline $e^x$ & $e^{x^2}$ & $e_x$ \\ \hline $\nabla$ & $curl \vec{F}$ & $div \vec{F}$ \\ \hline \& & \$frac{\pi d \sin\theta}{\lambda}$ \\ \hline \end{tabular} \end{table} }[/math]