\documentclass[12pt,a4paper]{article} \usepackage[ansinew]{inputenc} \usepackage{fancyhdr} \pagestyle{fancy} \usepackage[dvips]{graphicx} \usepackage[danish]{babel} \usepackage{amsmath,amssymb} \linespread{1.0} \lhead{Københavns Universitet\\ Kasper Ørum Køhler Simonsen} \rhead{\today \\} \cfoot{\thepage} \rfoot{} \renewcommand{\headrulewidth}{0.4pt} \renewcommand{\footrulewidth}{0.4pt} \begin{document} \begin{equation} \begin{pmatrix} x & y \\ z & v \end{pmatrix} \end{equation} \end{document}