\documentclass{article}
\begin{document}

\section{Math Examples}

Inline math: $E = mc^2$

Display math:
$$
\int_0^\infty e^{-x^2} dx = \frac{\sqrt{\pi}}{2}
$$

\begin{equation}
\nabla \times \mathbf{E} = -\frac{\partial \mathbf{B}}{\partial t}
\end{equation}

\section{Table Example}

\begin{table}[h]
\begin{tabular}{|c|c|c|}
\hline
Name & Age & City \\
\hline
Alice & 25 & Boston \\
Bob & 30 & Seattle \\
\hline
\end{tabular}
\caption{Sample table}
\end{table}

\section{References}
See \cite{smith2020} for more details. Also refer to Section \ref{sec:math}.

\end{document}