%%
%% A DANTE-Edition example
%%
%%
%% 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{pstricks}
\usepackage{pst-func}
\begin{document}
\psset{xunit=0.25,yunit=5}
\begin{pspicture}(-12,-.65)(12,1.1)
\rput(13,0.8){$\displaystyle
J_n(x)=\frac{1}{\pi}\int_0^\pi\cos(x\sin t-nt)\mathrm{d}t$}
\psaxes[Dy=0.2,Dx=4]{->}(0,0)(-26,-.6)(26,1.05)
\psset{linewidth=1pt}
\psBessel[linecolor=red]{0}{-25}{25}
\psBessel[linecolor=blue]{1}{-25}{25}
\psBessel[linecolor=magenta]{3}{-25}{25}
\end{pspicture}
\end{document}