$$ \small \langle \begin{pmatrix} 2 \\ 3 \\ 1 \end{pmatrix}, \begin{pmatrix} 4 \\ -1 \\ 2 \end{pmatrix} \rangle $$ calcolare il prodotto scalare tra i vettori

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$$ \small \langle \begin{pmatrix} 2 \\ 3 \\ 1 \end{pmatrix}, \begin{pmatrix} 4 \\ -1 \\ 2 \end{pmatrix} \rangle $$ $$ \downarrow $$ $$ 2\cdot 4 + 3 \cdot (-1) + 1 \cdot 2 $$ $$ \downarrow $$ $$ 8 - 3 + 2 $$ $$ \downarrow $$ $$ \LARGE 7 $$

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