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MathGroup Archive 2007

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How to use BlockMatrix

  • To: mathgroup at smc.vnet.net
  • Subject: [mg73082] How to use BlockMatrix
  • From: "T.Sariyski" <tsariysk at craft-tech.com>
  • Date: Thu, 1 Feb 2007 03:59:32 -0500 (EST)

Hi,
I want to use BlockMatrix. Here is an example:

a11={a0};
a12={a1,a2};
a21={a3,a4};
a22={{i,j},{k,l}};
BlockMatrix[{{a1,a12},{{a21},a22}}]//MatrixForm

Out: 
AppendColumns[AppendRows[a1,{a1,a2}],AppendRows[{{a3,a4}},{{i,j},{k,l}}]]

What I'm doing wrong here? 
Thanks, Ted



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