\documentclass[12pt]{article}
\newcommand{\vs}{\vspace{.1in}}
\newcommand{\ds}{\displaystyle}
\newcommand{\p}{\partial}
\newcommand{\Tr}{\rm Tr}
\usepackage[T1]{fontenc}
\usepackage{yfonts}
\usepackage{graphicx}
\usepackage{latexsym}
\usepackage{amsmath}
\usepackage{amssymb}
\def\Dirac{\not\hspace{-1.25mm}\partial}
\def\DDirac{\not\hspace{-1.25mm}D}

\usepackage{amsfonts}
\usepackage{rawfonts}
\usepackage{amsxtra}
\usepackage{amscd}
\usepackage{amsthm}
\usepackage{eucal}

%\usepackage{tikz}
%\usetikzlibrary{arrows,decorations.pathmorphing,decorations.markings,trees,backgrounds,fit,calc,through}
\usepackage{slashed}
\input{prepictex}
\input{pictex}
\input{postpictex}
\begin{document}


\begin{figure}[htp]
\centering \includegraphics[width=4in]{feynman.eps}
\end{figure}
\begin{figure}[htp]
\centering \includegraphics[width=4in]{mandelbrot.eps}
\end{figure}

\begin{figure}[htp]
\centering \includegraphics[width=4in]{aharonov.eps}
\end{figure}






\end{document}