Little maths question

[Mark Smith]

Well, ultimately I wouldn't want 1,2,3,4 and 2,3,4,1, but I could 
handle whittling it down to what I need. I just can't see a good way to 
generate the exhaustive list in the first place.

Cheers,

Mark

On 12 Sep 2005, at 18:36, Lynch, Jonathan wrote:

> Do they have to be in order?
>
> Would 1,4,2,3 also count?
>
> -----Original Message-----
> From: use-revolution-bounces at lists.runrev.com
> [mailto:use-revolution-bounces at lists.runrev.com] On Behalf Of Mark 
> Smith
> Sent: Monday, September 12, 2005 9:34 AM
> To: How to use Revolution
> Subject: Little maths question
>
> This is probably really easy, but I'm so stupid when it comes to maths
> that I can't figure it out:
>
> Given a list of any number of lines, how can I generate a list of every
> possible combination of those lines ie.
>
> 1
> 2
> 3
> 4
>
> would give:
>
> 1
> 2
> 3
> 4
> 1,2
> 1,3
> 1,4
> 2,3
> 2,4
> 3,4
> 1,2,3
> 1,3,4
> 2,3,4
> 1,2,3,4
> (this is from my thick head, so may not be complete, but you get the
> idea...)
>
> Thanks,
>
> Mark
>
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