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Re: Repost of Vertex question... [message #25604 is a reply to message #25531]

Mon, 02 July 2001 04:05

Struan Gray
Messages: 178
Registered: December 1995

Senior Member

Craig Markwardt, craigmnet@cow.physics.wisc.edu writes:

> Cool ideas!

Quasicrystals are cool things. Back when I were a
nipper looking at options for a thesis project they were one
of the things that persuaded me that Solid state physics
could compete with Astronomy when it came to beauty,
mathmatical elegance and real-world physics wrapped up in
one image.

I was musing over the weekend on ways to automatically
detect the vertex types, but without seeing Brian's image
(some net-nanny seems to have auto-removed it before it got
to our newsservers) I don't know what sort of quasicrystal
he's dealing with. Something like a Penrose tiling, with
only a pair of polygonal units, would be pretty simple, but
more complex quasicrystals would make it a bit too involved,
and it's easier to just point at the screen.

Of course, the hardcore quasicrystallographer will use
MPFIT to find the higher-dimensional regular lattice of
which the quasicrystal is the two-dimensional projection.
I'll leave this as an exercise for the reader :-P.

Struan

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[Message index]

		Re: Repost of Vertex question... By: Craig Markwardt on Thu, 28 June 2001 19:46
		Re: Repost of Vertex question... By: david[2] on Thu, 28 June 2001 17:06
		Re: Repost of Vertex question... By: Craig Markwardt on Mon, 02 July 2001 06:33
		Re: Repost of Vertex question... By: Struan Gray on Mon, 02 July 2001 04:05
		Re: Repost of Vertex question... By: Craig Markwardt on Fri, 29 June 2001 07:24
		Re: Repost of Vertex question... By: Struan Gray on Fri, 29 June 2001 07:01
		Re: Repost of Vertex question... By: Richard French on Fri, 29 June 2001 03:55
		Re: Repost of Vertex question... By: Martin Downing on Thu, 12 July 2001 08:41

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