Re: newbie: all possible sums of two lists
- To: mathgroup at smc.vnet.net
- Subject: [mg30681] Re: newbie: all possible sums of two lists
- From: Albert Retey <albert.retey at visualanalysis.com>
- Date: Sat, 8 Sep 2001 02:22:22 -0400 (EDT)
- Organization: Visual Analysis AG
- References: <9n17po$24b$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Hi,
> 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
Mathematica 4.1 for Linux
Copyright 1988-2000 Wolfram Research, Inc.
-- Motif graphics initialized --
In[1]:= Flatten[Outer[Plus, {i1, i2, i3}, {j1, j2, j3}]]
Out[1]= {i1 + j1, i1 + j2, i1 + j3, i2 + j1, i2 + j2, i2 + j3, i3 + j1,
> i3 + j2, i3 + j3}
hope this helps...
Albert