26 May
2019
26 May
'19
8:10 p.m.
I'm not sure how polar reciprocation determines the exact size of a dual polyhedron. —Dan Mike Stay wrote: ----- On Sun, May 26, 2019 at 6:10 PM Dan Asimov <dasimov@earthlink.net> wrote:
I've long been confused about the exact metric definition of "dual polyhedron". Sure, define one "new vertex" for each old face, and one "new edge" for each pair of old faces that share an edge — that gives the dual combinatorially. But as for the exact shape & size, I'm deeply confused. (We're in R^3.)
Polar reciprocation: https://math.wikia.org/wiki/Dual_polyhedron -----