[Jprogramming] [Fwd: Re: Szilassi's toroidal heptahedron: interfacial angles?]

PMA PeterArmstrong at aya.yale.edu
Mon Aug 17 08:08:56 HKT 2009


P.S.  But I suspect that at this point my question is independent
         of the figure's overall shape.  I'm asking simply whether,
         given a 3D vertex of 3 faces, its interfacial angles can be
         computed just from its 2D edge-pair angles, once known.

-------- Original Message --------
Subject: Re: [Jprogramming] Szilassi's toroidal heptahedron: 
interfacial	angles?
Date: Sun, 16 Aug 2009 19:41:30 -0400
From: PMA <PeterArmstrong at aya.yale.edu>
To: Programming forum <programming at jsoftware.com>
References: <4A885BFE.4030805 at aya.yale.edu> 
<276d72a00908161309w3488549y8f0f4a612b39a at mail.gmail.com>

Brian,

Yes, have, thanks.  I mangled together a little paper model
from his -- Tom Ace's -- face PDFs.  Helped a lot to get my
mind around this thing.  FYI. though, I do prefer Szilassi's
face-naming convention, as it better conveys congruence
relationships.

Thanks for your note.

Peter


Brian Schott wrote:
> Peter,
> 
> Have you seen this link? It might be helpful.
> 
> http://www.minortriad.com/szilassi.html
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
> 
> 




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