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October 2nd, 2018, 08:59 PM  #1 
Senior Member Joined: Apr 2017 From: New York Posts: 104 Thanks: 6  4x4 elimination matrices
In this 4x4 elimination matrices E21, E32 and E43 how E43 became 3/4 What I know from 3x3 matrices: E21 is a12/a11 and E31 is a31/a11 and E32 is a32/a12 or the elimination multiplier applied to identity matrix I have no experience on 4x4 and I could not get E32 and E43 
October 2nd, 2018, 11:23 PM  #2 
Senior Member Joined: Sep 2015 From: USA Posts: 2,121 Thanks: 1101  

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4x4, elimination, matrices 
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