Answer by MonadBoy for Definition of Elementary Matrices
Let's answer your question 2 first. The expression with the kronecker deltas is$$E_{ij} = (\delta_{ii'}\delta_{jj'})_{1\leq i',j' \leq m}$$This means that the entry at row $i'$, column $j'$ of the...
View ArticleDefinition of Elementary Matrices
I'm a bit confused about the definition of elementary matrices which are used to represent elementary row operations on an extended coefficient matrix when doing the Gaussian elimination.In my lecture...
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