Making a small modification to a LaTeX environment
\let\oldfigure\figure \def\figure{\oldfigure\centering} Another solution which works with the optional arguments. Fixed. \let\oldfigure\figure \let\oldendfigure\endfigure \def\figure{\begingroup \oldfigure} \def\endfigure{\centering \oldendfigure \endgroup} Fixed 2. It does work well with any options and any rules and \par inside. \makeatletter \let\oldfigure\figure \def\figure{\@ifnextchar[\figure@i \figure@ii} \def\figure@i[#1]{\oldfigure[#1]\centering} \def\figure@ii{\oldfigure\centering} \makeatother