%% 
%%  Example 07-02-1 
%%  Copyright (C) 2017 Herbert Voss
%% 
%% ==== 
% Show page(s) 1
%% 
%% 
\documentclass[]{screxa}
\pagestyle{empty}
\setlength\textwidth{158.31393pt}
\setlength\parindent{0pt}
\usepackage[T1]{fontenc}
%StartShownPreambleCommands
\usepackage{amsmath}
%StopShownPreambleCommands
\begin{document}
\[
\left(
  \begin{array}{ccccc}
    1\\
     & 1 &  & \text{{\huge{0}}}\\
     &  & 1\\
     & \text{{\huge{0}}} &  & 1\\
     &  &  &  & 1
  \end{array}
\right)
\]
\end{document}
