\documentclass[a4paper,12pt]{article}
\usepackage{epic, eepic}

\usepackage{amsmath, amssymb, hymcbk, xspace}
\usepackage{euscript,  array}
\usepackage[T1]{fontenc}
%\usepackage{tipa1}
%\usepackage{calc, wasysym, textcomp, ulsy}

\begin{document}
\pagestyle{empty}

% Cartesian coordinates -- droite graduée  
\setlength{\unitlength}{1mm}
\begin{picture}(100,20)
\put(0,10){\vector(1,0){100}}\thicklines  
\put(50,9){\trtv}\put(50,2){\makebox(0,0)[b]{$0$}}\put(50,12){\makebox(0,0)[b]{$O$}}  
\put(60,9){\trtv}\put(60,2){\makebox(0,0)[b]{$1$}}\put(60,12){\makebox(0,0)[b]{$U$}}  
\put(40,9){\trtv}\put(40,2){\makebox(0,0)[b]{$-1$}}\put(10,9){\trtv}\put(10,2){\makebox(0,0)[b]{$-4$}}  
\put(72,9){\trtv}\put(72,2){\makebox(0,0)[b]{$2.2$}}\put(81.4159,9){\trtv}\put(81.4159,2){\makebox(0,0)[b]{§p}}  
\put(26.66667,9){\trtv}\put(25,0){\makebox(0,0)[b]{$-\dfrac{7}{3}$}}\put(95,12){\makebox(0,0)[b]{\Li}}  
\end{picture}
  

\end{document}

%%% Local Variables: 
%%% mode: latex
%%% TeX-master: t
%%% End: 
