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MathGroup Archive 2000

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Re: Q: Matrix Construction

  • To: mathgroup at smc.vnet.net
  • Subject: [mg26363] Re: Q: Matrix Construction
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Wed, 13 Dec 2000 02:41:22 -0500 (EST)
  • Organization: Universitaet Leipzig
  • References: <90v7pr$797@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

mytab=Table[Hold[x[i][[j]]], {i, 2}, {j, 2}]

and later if you have defined the vectors

ReleaseHold[mytab]

Regards
  Jens

Christoph wrote:
> 
>    hi,
> 
> i would like to create a matrix like this
> 
> {{x[1][[1]],x[1][[2]]},{x[2][[1]],x[2][[2]]}}
> 
> i tried to do it like this
> 
> Table[x[i][[j]],{i,2},{j,2}] and got some errormessages (partlength).
> How can i just create this table without evaluating it now. Later i
> will define some vectors x to be filled in.
> 
> Greetngs
>         Christoph


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