lattice definitions and geometries

Gene, would you comment on this:

http://www.hermetic.ch/compsci/lattgeom.htm

in regard to tuning, and what they have been / might be useful for
(see concurrent tuning list thread) . . . ?

-p

--- In tuning-math@yahoogroups.com, "Paul Erlich" <perlich@a...>
wrote:
> Gene, would you comment on this:
>
> http://www.hermetic.ch/compsci/lattgeom.htm
>
> in regard to tuning, and what they have been / might be useful for
> (see concurrent tuning list thread) . . .

I don't see the concurrent thread. Mathematicians would normally call
what he calls lattices "tessellations" (if the geometry is fixed)
or "infinite regular graphs" (if all we are interested in is the
graph.)

--- In tuning-math@yahoogroups.com, "Gene Ward Smith" <gwsmith@s...>
wrote:
> --- In tuning-math@yahoogroups.com, "Paul Erlich" <perlich@a...>
> wrote:
> > Gene, would you comment on this:
> >
> > http://www.hermetic.ch/compsci/lattgeom.htm
> >
> > in regard to tuning, and what they have been / might be useful
for
> > (see concurrent tuning list thread) . . .
>
> I don't see the concurrent thread.

On "cubic ice", the diamond form of carbon, etc.