%% 
%%  A DANTE-Edition example
%% 
%%  Example 15-03-10 on page 210.
%% 
%%  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{201.70511pt}
\setlength\parindent{0pt}

\usepackage{pst-plot}

\begin{document}
\psset{algebraic,plotpoints=501, yunit=2,linewidth=1pt}
\begin{pspicture*}(-6,-1.5)(6,1.5)
  \psaxes{->}(0,0)(-7,-1.5)(7,1.5)
  \psline[linecolor=black!15](-6,1)(6,1)
  \psplot[plotpoints=51,showpoints=true]{-6}{6}{cos(x)}
  \multido{\nA=1+1,\nB=20+5}{10}{%
    \psplot[linecolor=black!\nB]{-6}{6}{%
       Sum(ijk,0,1,\nA,(-1)^ijk*x^(2*ijk)/fact(2*ijk))}}
  \uput[180](2,1.1){$n=0$}\uput[0](0.9,-1){$n=1$}\uput[180](3.5,1.2){$n=2$}
\end{pspicture*}
\end{document}
