gepcel

\documentclass[$if(fontsize)$$fontsize$,$endif$$if(lang)$$lang$,$endif$$if(papersize)$$papersize$,$endif$]{$documentclass$}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usepackage{amssymb,amsmath}
\usepackage{euler}
\usepackage{ifxetex,ifluatex}
\usepackage{fixltx2e} % provides \textsubscript
% use microtype if available
\ifnum 0\ifxetex 1\fi\ifluatex 1\fi=0 % if pdftex
  \IfFileExists{microtype.sty}{\usepackage{microtype}}{}