\documentclass[Screen4to3]{foils} %\documentclass[25pt,Screen4to3]{foils} % Don't use landscape option with Screen4to3 -- it swaps back to portrait % size options, 17, 20 (default), 25, 30 \usepackage{times,feyn} \title{Feynman diagrams} \author{Norman Gray\\University of Glasgow} \date{2005 March 10} \parindent0pt \begin{document} \maketitle \foilhead{A diagram} Here is a text diagram $\Feyn{fglf}$, displayed \[ 2\times \feyn{2 !{fA}pf glB glS ff + \Diagram{hd \\ &g\\hu}} =\frac{\delta^{ab}}{p^2} \] \end{document}