Groups > comp.soft-sys.math.mathematica > #1999

Re: How to create such a list

From	Heike Gramberg <heike.gramberg@gmail.com>
Newsgroups	comp.soft-sys.math.mathematica
Subject	Re: How to create such a list
Date	2011-04-29 11:35 +0000
Organization	Steven M. Christensen and Associates, Inc and MathTensor, Inc.
Message-ID	<ipe7pk$r45$1@smc.vnet.net> (permalink)

Show all headers | View raw

One option would be

f[w_, n_] :=
 Apply[Plus, Subsets[Map[w, Range[n]]], {1}]

f[x,3]


output:
{0, w[1], w[2], w[3], w[1] + w[2], w[1] + w[3], w[2] + w[3], w[1] + w[2] + w[3]}

Heike


On 28 Apr 2011, at 11:37, Dominic Woerner wrote:

> Hi,
>
> I like to create a list of the form:
> 0,w[1],...,w[n],w[1]+w[2],...,w[1]+w[n],w[2]+w[3],......,w[1]+...+w[n]
> for arbitrary n
> Is there a neat way to do this?
>
> Cheers,
> Dominic
>

Back to comp.soft-sys.math.mathematica | Previous | Next | Find similar | Unroll thread

Thread

Re: How to create such a list Heike Gramberg <heike.gramberg@gmail.com> - 2011-04-29 11:35 +0000

csiph-web