Exercise 4.1

Enter the following $ 4\times 4$ matrix:

$\displaystyle A = \begin{bmatrix}1 & 2 & -1 & 3 \\ 7 & 2 & 0 & 1 \\ 3 &-2 & -1 &-1 \\ 0 & 1 & 4 & 8 \end{bmatrix}$    



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Esteur 2010-03-22