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MathGroup Archive 2004

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Re: List operation

  • To: mathgroup at smc.vnet.net
  • Subject: [mg45620] Re: [mg45617] List operation
  • From: George Woodrow III <georgevw3 at mac.com>
  • Date: Fri, 16 Jan 2004 19:56:57 -0500 (EST)
  • References: <200401161105.GAA10749@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Transpose[{x,y}] does the trick.

george

On 16 Jan, 2004, at 6:05 am, Dr. Wolfgang Hintze wrote:

> Given two lists
>
> In[7]:=
> x = {a, b, c}
> y = {A, B, C}
>
> I'm looking for the list of pairs
>
> z = {{a, A}, {b, B}, {c, C}}
>
> Defining the function
>
> In[5]:=
> paarweise[x_, y_, n_] := Table[{x[[i]], y[[i]]}, {i, 1, n}]
>
> gives
>
> In[6]:=
> z = paarweise[x, y, 3]
>
> Out[6]=
> {{a, A}, {b, B}, {c, C}}
>
> I'm sure there is a more elegant way to get such a list of pairs.
> Any help is appreciated.
>
> Wolfgang Hintze
>


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