Consider having vector
$v = \begin{pmatrix} v_1\\ v_2\\ \vdots\\ v_n \end{pmatrix}$
Consider the final result:
$ V = \begin{pmatrix} v_1 & 0 & \dots & 0\\ 0 & v_2 & \dots & 0\\ \vdots & \vdots & \ddots & \vdots\\ 0 & 0 & \dots & v_n\\ \end{pmatrix} $
How to get matrix $V$ operating on $v$ with matricial operations?
Thanks