\left(
  \begin{matrix}
    a_{11} & a_{12} & a_{13}\\
    a_{21} & a_{22} & a_{23}\\
    a_{31} & a_{32} & a_{33}
  \end{matrix}
\left|
  \begin{matrix}
    b_1\\ b_2\\ b_3
  \end{matrix}
\right)\right. \\