# Matrixmultiplikation/e i e j/Aufgabe/en

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Determine the product of matrices

${\displaystyle e_{i}\circ e_{j},}$
where the ${\displaystyle {}i}$-th standard vector

(of length ${\displaystyle {}n}$) is considered as a row vector and the ${\displaystyle {}j}$-th standard vector (also of length ${\displaystyle {}n}$) is considered as a column vector.