Maybe this is what you were trying to do, Pierre : \def \C {\ifcase \count 0 &0 \or &1 \or &2 \or &3 \else &4 \fi} \halign \bgroup #&#\cr 0\C \crcr \egroup \end ** Phil. -------- Pierre MacKay wrote: > > HMMM. I'll try again. > > Pierre