%% 
%%  Der Mathematiksatz mit LaTeX, 1. Auflage 2009
%% 
%%  Example 9-6-2 on page 181.
%% 
%%  Copyright (C) 2009 Herbert Voss
%% 
%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
%% 
%%  See http://www.latex-project.org/lppl.txt for details.
%% 

\documentclass[]{ttctminimal}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{355.65944pt}
\AtBeginDocument{\setlength\parindent{0pt}}
\StartShownPreambleCommands
\usepackage{bm,amsmath}
\DeclareBoldMathCommand[bold]{\Sin}{\mathrm{sin}}
\DeclareBoldMathCommand[bold]{\Alpha}{\alpha}
\StopShownPreambleCommands
\begin{document}
$ f(x)=\sin(x) $ $ \mathbf{f(x)=\sin(x)} $ $ \bm{f(x)=\sin(x)} $ \\
$ f(x)=\Sin(x) $ $ \mathbf{f(x)=\Sin(x)} $ $ \bm{f(x)=\Sin(x)} $ \\
$ f(\Alpha)=\Sin(\Alpha)$ $\mathbf{f(\Alpha)=\Sin(\Alpha)}$ $\bm{f(\Alpha)=\Sin(\Alpha)}$
\end{document}
