Mathematics

Problem

Given that

\mathbf{a} = \begin{pmatrix} -4 \\ 3 \\ 1 \end{pmatrix}

and

\mathbf{b} = \begin{pmatrix} 2 \\ 5 \\ -3 \end{pmatrix}

, calculate

\mathbf{a} \cdot \mathbf{b}