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Re: generating all combinations.

  • To: mathgroup at smc.vnet.net
  • Subject: [mg22420] Re: [mg22395] generating all combinations.
  • From: Rob Pratt <rpratt at email.unc.edu>
  • Date: Wed, 1 Mar 2000 00:40:17 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

Distribute[Table[Range[-2,2],{n}],List]

I would not suggest using n = 10, as there would be 5^10 lists, each with
10 elements.

Rob Pratt
Department of Operations Research
The University of North Carolina at Chapel Hill

rpratt at email.unc.edu

http://www.unc.edu/~rpratt/

On Sun, 27 Feb 2000, Wen-Feng Hsiao wrote:

> Dear all,
> 
> I would like to generate all the combinations n-digit lists, which can 
> vary between a certain range and duplications are allowed. The three 
> digits with range between -2 to 2 is the following:
> 
> allcomb = 
>     Table[{i, j, k}, {i, -2, 2}, {j, -2, 2}, {k, -2, 2}];
> fltcomb = Partition[Flatten[allcomb], 3];
> 
> Is there a more succinct way to do that? If I would like to expand the 
> code to 10 digits, the code would looks clumsy.
> 
> Thanks for your help.
> 
> Wen-Feng






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