Evaluate the following convolutions.
(a) \begin{pmatrix}1\\2\\3\end{pmatrix} \odot \begin{pmatrix}4\\5\\6\end{pmatrix}. (b) \begin{pmatrix}-1\\0\\1\end{pmatrix} \odot \begin{pmatrix}1\\0\\-1\end{pmatrix} (c) \begin{pmatrix}1\\1\\1\end{pmatrix} \odot \begin{pmatrix}α_0\\α_1\\α_2\end{pmatrix}.
(a) \begin{pmatrix}4\\13\\28\\27\\18\\0\end{pmatrix} (b) \begin{pmatrix}-1\\0\\2\\0\\-1\\0\end{pmatrix} (c) \begin{pmatrix}α_0\\α_0 + α_1\\α_0 + α_1 + α_2\\α_1 + α_2\\α_2\\ 0 \end{pmatrix}