%% %% An UIT Edition example %% %% Example 06-03-22 on page 97. %% %% Copyright (C) 2010 Herbert Voss %% %% It may be distributed and/or modified under the conditions %% of the LaTeX Project Public License, either version 1.3 %% of this license or (at your option) any later version. %% %% See http://www.latex-project.org/lppl.txt for details. %% %% %% ==== % Show page(s) 1 %% \documentclass[]{exaarticle} \pagestyle{empty} \setlength\textwidth{201.70511pt} \AtBeginDocument{\setlength\parindent{0pt} \setcounter{equation}{46} \renewcommand\theequation{6.\arabic{equation}}} \usepackage{amsmath} \makeatletter \def\env@matrix{\hskip -\arraycolsep \let\@ifnextchar\new@ifnextchar \array{*\c@MaxMatrixCols r}}% r for right \renewenvironment{smallmatrix}{\null\,\vcenter\bgroup \Let@\restore@math@cr\default@tag \baselineskip6\ex@ \lineskip1.5\ex@ \lineskiplimit\lineskip \ialign\bgroup\hfil$\m@th\scriptstyle##$% &&\thickspace\hfil $\m@th\scriptstyle##$% \crcr }{\crcr\egroup\egroup\,} \makeatother \StartShownPreambleCommands \usepackage{amsmath} \StopShownPreambleCommands \begin{document} \begin{align} \begin{pmatrix} 1 &-2 & 1 & 2\\ 2 & 3 &-2 & 3\\ 4 &-1 & 3 &-1\\ 3 & 2 &-4 & 5 \end{pmatrix} \end{align} \begin{align} \left(\begin{smallmatrix} 1 &-2 & 1 & 2\\ +2 & 3 &-2 & 3\\ 4 &-1 & 3 &-1\\ +3 & 2 &-4 & 5 \end{smallmatrix}\right) \end{align} \end{document}