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%%  Example 01-03-6 
%%  Copyright (C) 2017 Herbert Voss
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\documentclass[]{screxa}
\pagestyle{empty}
\setlength\textwidth{110.31393pt}
\setlength\parindent{0pt}
%StartShownPreambleCommands

%StopShownPreambleCommands
\begin{document}
\begin{eqnarray}
 y & = & d\nonumber \\
 y & = & cx+d\nonumber \\
 y & = & bx^{2}+cx+d\nonumber \\
 y & = & ax^{3}+bx^{2}+cx+d
\end{eqnarray}
\end{document}
