1. May 16, 2007 #1

   ssb

   

   1. The problem statement, all variables and given/known data
   
   Lets say A = a matrix.
   
   What is meant by the question [tex]A - I_3[/tex] ???
   
   I dont understand what the I means and im only given one matrix.... a 3x3 matrix listed as A

    

   Last edited: May 16, 2007

   ssb, May 16, 2007
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3. May 16, 2007 #2

   Dick

   

   Science Advisor

   Homework Helper

   I_3 is a 3x3 identity matrix - ones down the diagonal and zeros elsewhere.

    

   Dick, May 16, 2007

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