%% 
%%  Example 03-03-11 
%%  Copyright (C) 2016 Herbert Voss
%% 
%% ==== 
% Show page(s) 1
%% 
%% 
\documentclass[]{screxa}
\pagestyle{empty}
\setlength\textwidth{134.31393pt}

%StartShownPreambleCommands

%StopShownPreambleCommands
\begin{document}
\def\mySqrt{\radical"0270371\relax}
$ \mySqrt{\frac{1}{7}} $\\[5pt]
\def\mySqrt{\radical"0270372\relax}
$ \mySqrt{\frac{1}{7}} $\\[5pt]
\def\mySqrt{\radical"0270373\relax}
$ \mySqrt{\frac{1}{7}} $\\[5pt]
\def\mySqrt{\radical"0270374\relax}
$ \mySqrt{\frac{1}{7}} $\\[5pt]
\end{document}
