Groups > comp.soft-sys.math.mathematica > #1817

Re: Venn diagrams?

From	Heike Gramberg <heike.gramberg@gmail.com>
Newsgroups	comp.soft-sys.math.mathematica
Subject	Re: Venn diagrams?
Date	2011-04-21 07:12 +0000
Organization	Steven M. Christensen and Associates, Inc and MathTensor, Inc.
Message-ID	<ioolct$br8$1@smc.vnet.net> (permalink)

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I think you'll find that you can't make it work with three sets. There are 
7 surface areas but there are only 6 parameters you
can play with, i.e. 3 radii and 3 distances between the centres of the circles which leaves one parameter short. You should
have a chance if you allow for shapes other than circles (ellipses maybe?), but that probably becomes even more fiddly.

Heike.

On 20 Apr 2011, at 09:29, dantimatter wrote:

> Thanks DrMajorBob, Murray, and Bob Hanlon!  To the Bobs especially:  your math and coding chops are most impressive.  :)  
>
> Any thoughts on extensions to three sets?  At first I had hoped that it would be straight-forward, but after fiddling a bit myself I'm not so sure.
>
> I'm kinda surprised that Mathematica doesn't have this as a built-in function ....
>
> Cheers
> dan
>

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Re: Venn diagrams? Heike Gramberg <heike.gramberg@gmail.com> - 2011-04-21 07:12 +0000

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