%%
%% The LaTeX Companion, 3ed
%%
%% Example 8-3-4 on page I-604 in "Extended or changed commands".
%%
%% 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{111.0pt}

%StartShownPreambleCommands
\usepackage[pstarrows]{pict2e}
%StopShownPreambleCommands

\begin{document}
\begin{picture}(100,90)
  \put(0,0) {\line(0,1){90}}  % vertical at 0,0
  \put(0,40){\line(1,0){15}}  % horizontal at 0,40
  \put(20,40){\small \LaTeX{} arrow heads used}
\linethickness{4pt}
  \put(0,55){\vector(1,0){15}} \put(0,70){\vector(1,0){50}}
  \put(0,85){\vector(1,0){100}}
\ltxarrows
  \put(0,30){\vector(1,0){15}} \put(0,15){\vector(1,0){50}}
  \put(0,0){\vector(1,0){100}}
\end{picture}
\end{document}
