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MathGroup Archive 2005

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Matrix/Array Simplification

  • To: mathgroup at smc.vnet.net
  • Subject: [mg60100] Matrix/Array Simplification
  • From: "Jon Palmer" <Jonathan.palmerNOSPAM at new.ox.ac.uk>
  • Date: Fri, 2 Sep 2005 04:33:03 -0400 (EDT)
  • Organization: Oxford University, England
  • Sender: owner-wri-mathgroup at wolfram.com

Mathematica will happilly simplify scalar expressions such as

Simplify[a*x + a*y] = a*(x+y)


My question is: Is there a simple way to simplfy matrices in a similar way?

For example suppose you have the diagonal matrix
m = {{a x, 0}, {0, a y }}

can this matrix be simplified to the form



a * {{ x, 0}, {0,  y }}



Many thansk

Jon Palmer









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