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Re: newbie: all possible sums of two lists

  • To: mathgroup at smc.vnet.net
  • Subject: [mg30700] Re: newbie: all possible sums of two lists
  • From: "Seth Chandler" <Schandler at uh.edu>
  • Date: Sat, 8 Sep 2001 02:23:08 -0400 (EDT)
  • References: <9n17po$24b$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Outer[Plus,list1,list2]  will work and create a two dimensional result.
Flatten[Plus,list1,list2],1] will create a one dimensional list of the
possible sums.


"Alan Tu" <alantu at students.uiuc.edu> wrote in message
news:9n17po$24b$1 at smc.vnet.net...
> 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
>
>
>



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