%\documentclass[convert={density=400,outext=.png}]{standalone}

\documentclass[11pt]{book}
\usepackage{amssymb}
\usepackage{pgf,tikz,pgfplots}
\usetikzlibrary{calc}

\usetikzlibrary{arrows,shapes,calc,decorations.pathreplacing,fit,positioning,backgrounds}

\usetikzlibrary{shadings,patterns}

\usepackage{pst-fractal}

\definecolor{azure}{rgb}{0.0, 0.5, 1.0}

\begin{document}

%\includegraphics[scale=0.75]{HTW3.png}

%\input{HTW1_1_3.tikz}


\input{tikz_3_2.tikz}


\end{document}
