MathGroup Archive 2001

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: newbie: all possible sums of two lists

  • To: mathgroup at smc.vnet.net
  • Subject: [mg30697] Re: newbie: all possible sums of two lists
  • From: Mark Westwood <mark at galeawestwood.freeserve.co.uk>
  • Date: Sat, 8 Sep 2001 02:22:56 -0400 (EDT)
  • References: <9n17po$24b$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Alan

I think Outer[Plus, list1, list2] is probably what you want, you may 
need or want to Flatten the result..  The book will explain what is 
going on.

Regards
Mark Westwood
Pilot Solutions Ltd

Alan Tu wrote:

> Hello, I confess I am a newbie to Mathematica. I think I have a basic
> understanding of the syntax and concepts, but there are just so many
> functions. What is the most efficient way to find all the possible sums of
> two lists.
> 
> List[i1, i2, ... i_n]
> List[j1, j2, ... j_m]
> 
> I want
> 
> List[i1+j1, i1+j2, i1+j3, ... i1+j_m, i2+j1, i2+j2, i2+j3, ... i2+j_m, ...
> i_n+j_m]
> 
> Any ideas would be appreciated. Thanks.
> 
> Regards,
> 
> Alan Tu
> 
> 
> 



  • Prev by Date: newbie: computing rational numbers and decimal
  • Next by Date: Re: newbie: all possible sums of two lists
  • Previous by thread: Re: newbie: all possible sums of two lists
  • Next by thread: Re: newbie: all possible sums of two lists