Re: The Power Set
- To: mathgroup at smc.vnet.net
- Subject: [mg12847] Re: [mg12819] The Power Set
- From: BobHanlon at aol.com
- Date: Wed, 17 Jun 1998 00:27:51 -0400
- Sender: owner-wri-mathgroup at wolfram.com
Jasvinder, Needs["DiscreteMath`Combinatorica`"] ColumnForm[Sort[Subsets[{x1, x2, x3, x4}]]] Bob Hanlon In a message dated 6/12/98 8:02:06 AM, jsk97r at ecs.soton.ac.uk wrote: >Since I am new to Mathematica, I apologise if this question is trivial!! >I am trying to list all the subsets of a set of variables, ie > >I have a set X containing 4 variables X1, X2, X3 and X4 - so what I want >to do is list all the subsets, so for this case it would be: > >X1 >X2 >X3 >X4 >X1,X2 >X1,X3 >X1,X4 >X2,X3 >X2,X4 >X3,X4 >X1,X2,X3 >X1,X2,X4 >X1,X3,X4 >X2,X3,X4 >X1,X2,X3,X4 > >The problem is as the set becomes larger, there are 2^n possible >subsets, as such I would like to know if there is a quick way of >displaying this information in this format.