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MathGroup Archive 2006

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Re: Merge of Matrices

  • To: mathgroup at
  • Subject: [mg71172] Re: [mg71098] Merge of Matrices
  • From: Murray Eisenberg <murray at>
  • Date: Thu, 9 Nov 2006 03:40:47 -0500 (EST)
  • Organization: Mathematics & Statistics, Univ. of Mass./Amherst
  • References: <>
  • Reply-to: murray at

See functions in standard add-on package


Robert Berger wrote:
> Hello!
> I like to create from the four matrices A (N1 rows and N1 columns),
> B (N1 rows and N2 columns), C (N2 rows and N1 columns),
> D (N2 rows and N2 columns) a new matrix X of the form
>       A  B
> X =
>       C  D
> Once A & B and C & D have been merged, the first (A & B) and the 
> second row (C& D) can be merged in that way by applying Join, which is 
> not a problem but how can I merge A & B (and of course C & D) in
> that way?
> Kindly regards,
> Roman.

Murray Eisenberg                     murray at
Mathematics & Statistics Dept.
Lederle Graduate Research Tower      phone 413 549-1020 (H)
University of Massachusetts                413 545-2859 (W)
710 North Pleasant Street            fax   413 545-1801
Amherst, MA 01003-9305

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