%%
%% The LaTeX Companion, 3ed
%%
%% Example 8-2-9 on page I-590 in "Rotating a \protect \LaTeX {} box".
%%
%% 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}


  \usepackage{color}

  % make a blue rule at the start of every paragraph (low-level)

  \AtBeginDocument{%
    \everypar{\rlap{\color{blue}%
        \vrule width \linewidth height 0pt depth .4pt}}}

%StartShownPreambleCommands
\usepackage{graphics} % or graphicx
\newcommand\MyRot[1]{\rotatebox{#1}%
                      {rotate $#1^\circ$}}
%StopShownPreambleCommands

\begin{document}
\MyRot{0}  \MyRot{45} \MyRot{90}
\MyRot{135}\MyRot{180}\MyRot{225}
\end{document}

.
