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From: ljdickey@watmath.UUCP (Lee Dickey)
Newsgroups: net.math
Subject: Icosahedron Vertices
Message-ID: <5505@watmath.UUCP>
Date: Tue, 12-Jul-83 09:26:44 EDT
Article-I.D.: watmath.5505
Posted: Tue Jul 12 09:26:44 1983
Date-Received: Wed, 13-Jul-83 00:09:13 EDT
Sender: ljdickey@watmath.UUCP
Organization: U of Waterloo, Ontario
Lines: 11

I think that you will find equations for your vertices in the book
"Regular Polytopes" by H.S.M. Coxeter, Published by Dover Publications, Inc.
in 1973.  You should look at pages 15 to 24.
 
-- 
                lee dickey

                           Lee Dickey
                           University of Waterloo
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                           ljdickey@watmath.UUCP