%%
%% The LaTeX Companion, 3ed
%%
%% Example 12-3-2 on page II-240 in "cmbright --- The Computer Modern Bright fonts".
%%
%% Copyright (C) 2022 Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%%
%% See https://www.latex-project.org/lppl.txt for details.
%%

\documentclass{tlc3exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{207.0pt}


% make the heading a bit smaller in the examples
\makeatletter
\renewcommand\section{\@startsection{section}{1}{\z@}%
                                    {-1.25ex \@plus-1ex \@minus-.2ex}%
                                    {.5ex}%
                                    {\normalfont\large\bfseries}}
\makeatother

%StartShownPreambleCommands
\usepackage[T1]{fontenc}
  \usepackage{cmbright}
%StopShownPreambleCommands

\begin{document}
\section{A CM Bright document}
The CM Bright family contains
\texttt{typewriter} fonts and matching fonts
for math formulas, e.g.,
\[ \sum_{0\leq k<n} k = \frac{n(n-1)}{2} \]
\end{document}