
MathAn elementary matrix is one that can be reached from the identity matrix I by a single elementary row operation, like row addition or row switching. Therefore `A = ((0,0,1),(0,3,0),(1,0,2)) =...

MathThe matrix `U` is the product of some particular set of elementary matrices. An elementary matrix can be reached from the identity matrix of the same dimension by an elementary row or column...
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