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Re: Lists of all values of a two-variable function

• To: mathgroup at smc.vnet.net
• Subject: [mg64761] Re: [mg64735] Lists of all values of a two-variable function
• From: Renan <renan.birck at gmail.com>
• Date: Thu, 2 Mar 2006 06:47:58 -0500 (EST)
• References: <200603011104.GAA23021@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

On 3/1/06, José Carlos Santos <jcsantos at fc.up.pt> wrote:
> Hi all,
>
> I would like to do this: given a function _f_ in two variables and two
> lists l1 and l2, to get the list of all values f[a,b] with _a_ in l1 and
> _b_ in l2, with all duplicated values removed. How do I do that?
>
> The closest thing that I am able to do is:
>
> Table[f[l1[[i]],l2[[j]]],{i,1,Length[l1]},{j,1,Length[l2]}]
>
> but, of course:
>
> 1) what I get is a list of lists;
>
> 2) I eventually get duplicated values.

Jose,

Try:

Union[Flatten[Table[f[l1[[i]],l2[[j]]],{i,1,Length[l1]},{j,1,Length[l2]}]]]

Thanks,
Renan

• References:
  • Lists of all values of a two-variable function
    • From: José Carlos Santos <jcsantos@fc.up.pt>