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MathGroup Archive 2004

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Re: Concatenate matrices

  • To: mathgroup at smc.vnet.net
  • Subject: [mg51444] Re: Concatenate matrices
  • From: "Steve Luttrell" <steve_usenet at _removemefirst_luttrell.org.uk>
  • Date: Sun, 17 Oct 2004 03:06:23 -0400 (EDT)
  • References: <ckqmb1$nb0$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Try this:

<< "LinearAlgebra`MatrixManipulation`"

MatrixForm[e = {{e11, e12, e13}, {e21, e22, e23}, {e31, e32, e33}}]

MatrixForm[f = {{f11, f12}, {f21, f22}, {f31, f32}}]

MatrixForm[BlockMatrix[{{e, f}}]]
Steve Luttrell

"Thomas Guignard" <thomas.guignard at epfl.ch> wrote in message 
news:ckqmb1$nb0$1 at smc.vnet.net...
> Hi all
>
> Does someone know if there is a function in Mathematica to simply
> concatenate matrices (provided their dimensions are right).
>
> Example:
>
>     / e11  e12  e13 \
> E = | e21  e22  e23 |
>     \ e31  e32  e33 /
>
>     / f11  f12 \
> F = | f21  f22 |
>     \ f31  f32 /
>
> I'd like to have:
>
>     / e11  e12  e13  f11  f12 \
> R = | e21  e22  e23  f21  f22 |
>     \ e31  e32  e33  f31  f32 /
>
> Any ideas?
>
> T.
>
> -- 
> Thomas Guignard
> Laboratory of Electromagnetics and Acoustics
> Swiss Federal Institute of Technology, Lausanne
> 



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