%% 
%%  A DANTE-Edition example
%% 
%%  Example 05-01-4 on page 59.
%% 
%%  Copyright (C) 2011 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.
%% 
%% 
%% ==== 
% Show page(s) 1
%% 
\documentclass[]{article}
\pagestyle{empty}
\setlength\textwidth{153.70511pt}
\setlength\parindent{0pt}

\usepackage{pstricks}

\begin{document}
\begin{pspicture}[showgrid](3,3)
  \pscurve[showpoints=true,linecolor=red,%
    linestyle=dashed](0,0)(2,3)(2.5,0)
  \pscurve[linecolor=green,curvature=1 2.0 0]%
    (0,0)(2,3)(2.5,0)
  \pscurve[linecolor=blue,curvature=1 1 0]%
    (0,0)(2,3)(2.5,0)
  \pscurve[linecolor=gray,curvature=1 -0.5 0]%
    (0,0)(2,3)(2.5,0)
  \pscurve[linecolor=black,curvature=1 -1.0 0]%
    (0,0)(2,3)(2.5,0)  \uput[0](0,0){A}
  \uput[0](2.5,0){B}\uput[-90](2,3){C}
\end{pspicture}
\end{document}