Possible Duplicate:
Error: Counter too large! with \alph{cntr} and cntr>26
I need Alphabetic numeration of my chapters.
But if they are more than 26 LaTeX gives an error message.
How I can teach LaTeX to continue numbering as AA, AB, AC etc.?
\documentclass{book}
\begin{document}
\appendix
\setcounter{chapter}{26}
\chapter{foo}
\end{document}
I get the following error message:
LaTeX Error: Counter too large.
