Csikos Bela wrote: > What do you mean by "empty \endcentering" ? > empty \endcentering.
It means that \end{centering} calls \endcentering only if this command exists. This is due to the way LaTeX environments are defined (the environment end does not call \endcentering directly, but \csname endcentering\endcsname, which sets \endcentering to \relax if it is not defined. Hence, LaTeX does not complain about an undefined \endcentering, but just treat it as if th command was "empty". Try \newcommand\myname{Csikos Bela} [...] \begin{myname} \end{myname} Jürgen