Wikipedia Talk:Aperiodic tiling

Terminology

I fixed substitution tiling because its conflation of "aperiodic" with
"nonperiodic" is not common in tiling literature.  Periodic function
still uses the terms synonymously; I don't have a good enough handle
on the literature to know whether this is legitimate.  -Dan Hoey
18:49, 30 April 2007 (UTC)