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A and B are matrices that can be multiplied together.

When does AB=BA

This is of course ignore the basic,  A or B = O, AB= O, A or B = I (identical matrix), and AB = I.

 

Other than that, is it ever possible?

Guest Jul 21, 2017

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 #1
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Couple of examples of commutative matrices:

 

.

Alan  Jul 21, 2017
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 #1
avatar+26273 
+1
Best Answer

Couple of examples of commutative matrices:

 

.

Alan  Jul 21, 2017
 #2
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Interesting! Thanks

Guest Jul 21, 2017

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