% Thanks to PDF2SVG (http://www.cityinthesky.co.uk/opensource/pdf2svg/), I can transform a PDF into SVG.% Author: Ika% Date: 11/04/2014\documentclass{amsart}\usepackage[paperwidth=10cm, paperheight=2.5cm, top=0cm, left=0cm, right=0cm, bottom=0cm]{geometry}\usepackage{amsmath,amssymb,nopageno}\usepackage[all]{xy}\begin{document}\Huge\begin{equation*}\xymatrix@C+4em@R+4em{
Z \ar^{g_1}@<3pt>[r] \ar_{g_2}@<-3pt>[r] & X \ar[r]^f & Y
}\end{equation*}\end{document}