Mistakes

HallsofIvy

Elite Member
Joined
Jan 27, 2012
Messages
7,763
That was a misprint. He meant A2B2\displaystyle A^2B^2. The point is (AB)2=ABAB\displaystyle (AB)^2= ABAB is NOT equal to A2B2\displaystyle A^2B^2 because matrix multiplication is not, generally, "commutative". For most matrices BA is not equal to AB.
 
That was a misprint. He meant A2B2\displaystyle A^2B^2. The point is (AB)2=ABAB\displaystyle (AB)^2= ABAB is NOT equal to A2B2\displaystyle A^2B^2 because matrix multiplication is not, generally, "commutative". For most matrices BA is not equal to AB.
I knew that - but sending Jomo to the corner is spice of my existence..........
 
I thought that you knew that you can't ever win with me.
I win "with" you always - you are a great fighter.

However, winning "against" you is becoming easier. Your eyesight is getting weaker - sitting in that dark corner.......
 
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