Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!rutgers!apple!turk
From: turk@Apple.COM (Ken "Turk" Turkowski)
Newsgroups: comp.graphics
Subject: Re: Computational geometry
Message-ID: <1613@internal.Apple.COM>
Date: 1 May 89 07:10:44 GMT
References: <2053@incas.UUCP> <5397@cs.utexas.edu> <9455@watcgl.waterloo.edu>
Organization: Advanced Technology Graphics, Apple Computer, Cupertino, CA, USA
Lines: 12

In article <9455@watcgl.waterloo.edu> ksbooth@watcgl.waterloo.edu (Kelly Booth) writes:
>You can derive Newell's formula from the formula for a cross product
>and induction on n, the number of vertices (for n=3, Newell's formula
>IS the cross product).

Newell's formula is also related to the area of the polygon
projected onto each of the coordinate planes.
-- 
Ken Turkowski @ Apple Computer, Inc., Cupertino, CA
Internet: turk@apple.com
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