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MathGroup Archive 2004

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identity matrix

  • To: mathgroup at smc.vnet.net
  • Subject: [mg49932] identity matrix
  • From: markbishop at charter.net (Mark)
  • Date: Fri, 6 Aug 2004 03:09:58 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

Is the identity matrix strictly a matrix with 1's along the principal
diagonal (and zeros elsewhere), or is a matrix which reduces (through
row and column operations) to the above form also the identity matrix.


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