Services & ResourcesWolfram ForumsMathGroup Archive

[Date Index] [Thread Index] [Author Index]

A Question about Combinatorica

• To: mathgroup at smc.vnet.net
• Subject: [mg104765] A Question about Combinatorica
• From: Marwa Abd El-Wahaab <m.a.elwahaab at gmail.com>
• Date: Mon, 9 Nov 2009 05:44:37 -0500 (EST)

Dear Sir

I have a question about  permutations of 5 points in 3D space .

These 5 points are on the surface of a sphere of radius =1.

These points are:
 { {0., 0., 1.},  {0.181636, 0.559017, 0.809017},  {-0.769421,
0.559017, 0.309017}, {-0.769421, -0.559017, -0.309017}, {0.181636,
-0.559017, -0.809017} }

My question:

What are all possible permutations for these 5 points ?

What are the permutations after delete similarities?


I need your reply

Thanks

Marwa Ali

• Follow-Ups:
  • Re: A Question about Combinatorica
    • From: Murray Eisenberg <murray@math.umass.edu>