Multiplicando o número -2 pela matriz !$ \begin {pmatrix} -0,5 \,\,\,\,\,\,\,\, -1 \,\,\,\,\,\,\,\,\, 3 \\ 1 \,\,\,\,\,\,\,\,\, 2,5 \,\,\,\,\,\,\,\,\, -1 \\ 3 \,\,\,\,\,\,\,\,\, 0 \,\,\,\,\,\,\,\,\, -2 \end {pmatrix} !$ obtemos a matriz:
Multiplicando o número -2 pela matriz !$ \begin {pmatrix} -0,5 \,\,\,\,\,\,\,\, -1 \,\,\,\,\,\,\,\,\, 3 \\ 1 \,\,\,\,\,\,\,\,\, 2,5 \,\,\,\,\,\,\,\,\, -1 \\ 3 \,\,\,\,\,\,\,\,\, 0 \,\,\,\,\,\,\,\,\, -2 \end {pmatrix} !$ obtemos a matriz: