\begin{frame}[fragile]{Math packages}
The following three packages are useful for typesetting mathematics:
\begin{minted}[highlightlines={2,3,4}]{tex}
\documentclass[a4paper, 10pt]{article}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{amsthm}
\begin{document}
\[
    ax^2 + bx + c = 0 \qquad 
    \text{the general form of the quadratic equation} 
\]
\end{document}
\end{minted}
These provide options for adding text to formulae, 
extra symbols such as \( \boxplus \) , \( \leadsto \) and \(\mathbb{R}\) and better theorem and proof environments.
\end{frame}