Services & Resources / Wolfram Forums / MathGroup Archive
-----

MathGroup Archive 2012

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

Search the Archive

Re: Creating List

  • To: mathgroup at smc.vnet.net
  • Subject: [mg125540] Re: Creating List
  • From: Bob Hanlon <hanlonr357 at gmail.com>
  • Date: Sun, 18 Mar 2012 02:42:09 -0500 (EST)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com
  • References: <201203170751.CAA05090@smc.vnet.net>

x = Array[xkoor, 4];

y = Array[ykoor, 3];

Flatten[Outer[{#2, #1} &, y, x], 1]

{{xkoor[1], ykoor[1]}, {xkoor[2], ykoor[1]}, {xkoor[3],
  ykoor[1]}, {xkoor[4], ykoor[1]}, {xkoor[1], ykoor[2]}, {xkoor[2],
  ykoor[2]}, {xkoor[3], ykoor[2]}, {xkoor[4], ykoor[2]}, {xkoor[1],
  ykoor[3]}, {xkoor[2], ykoor[3]}, {xkoor[3], ykoor[3]}, {xkoor[4],
  ykoor[3]}}


Bob Hanlon


On Sat, Mar 17, 2012 at 3:51 AM, Harry <hvdosten at gmail.com> wrote:
> Hi out there,
>
>
> I have calculated some x- and y-values and want to combine them in a
> way that the x and y-values define coordinates. Well, I have:
>
> xkoor[i], {i, 1, iend} and
> ykoor[j], {j, 1, jend}
>
>
> To be able to continue I need this list:
>
> {{xkoor[1],ykoor[1]},
>  {xkoor[2],ykoor[1]},
>  {xkoor[3],ykoor[1]},
>  {xkoor[4],ykoor[1]},
>  {xkoor[1],ykoor[2]},
>  {xkoor[2],ykoor[2]},
>  {xkoor[3],ykoor[2]},
>  {xkoor[4],ykoor[2]},
>  {xkoor[1],ykoor[3]},
>  {xkoor[2],ykoor[3]},
>  {xkoor[3],ykoor[3]},
>  {xkoor[4],ykoor[3]}}
>
> and have no idea how to get this. So I would be very happy to get any
> small hint...
>
> Thanks a lot,
>
> Harald
>



  • Prev by Date: Re: Creating List
  • Next by Date: Re: new functional operator
  • Previous by thread: Re: Creating List
  • Next by thread: Re: Creating List