LaTex Beamer

\documentclass{beamer}

\usetheme{Madrid}
\usetheme{Berlin}
\usetheme{CambridgeUS}

\begin{frame} ... \end{frame}

Example

\documentclass{beamer}

\title{Introduction to Beamer}
\author{Seonglae Cho}
\date{\today}

\begin{document}

\frame{\titlepage}

\begin{frame}{Overview}
  \begin{itemize}
    \item What is Beamer?
    \item How to use it
    \item Example slides
  \end{itemize}
\end{frame}

\begin{frame}{Equation Example}
  \[
    E = mc^2
  \]
\end{frame}

\end{document}