> -----Original Message-----
> From: Michael Benbow [mailto:[EMAIL PROTECTED] 
> Sent: 14 June 2004 08:31
> To: [EMAIL PROTECTED]
> Subject: [PHP] Combo problems.. Multi Array??
> 
> 
> Hi,
> 
> I've got a problem which has left me scratching my head for 
> the better 
> part of a week.

[...]

> The outcome, if working properly, should be...
> 
> A [1][2] B        C
> A        B [1][2] C
> A        B        C [1][2]
> A [1]    B [2]    C
> A        B [1]    C [2]
> A [1]    B        C [2]
> A [2]    B [1]    C
> A [2]    C        C [1]
> A        B [2]    C [1]
> 
> Does anyone have any ideas on how I could do this?  As I said I'm 
> completely stumped.

This is called a permutation.  Googling for "permutation formula" brings up
any number of good links; the most succinct is probably
http://www.mathwords.com/p/permutation_formula.htm, but most of the other
top 10 links will give you the same answer with a bit (or a lot!) more
explanation.

Cheers!

Mike

---------------------------------------------------------------------
Mike Ford,  Electronic Information Services Adviser,
Learning Support Services, Learning & Information Services, JG125, James
Graham Building, Leeds Metropolitan University, Headingley Campus, LEEDS,
LS6 3QS,  United Kingdom
Email: [EMAIL PROTECTED]
Tel: +44 113 283 2600 extn 4730      Fax:  +44 113 283 3211

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