\[\det\begin{pmatrix}
a_{11} & a_{12} & a_{13}\\
a_{21} & a_{22} & a_{23}\\
a_{31} & a_{32} & a_{33}
\end{pmatrix} \]

=
\begin{vmatrix}
a_{11} & a_{12} & .. & a_{1n}\\
a_{21} & a_{22} &.. & a_{2n}\\
.. & .. & .. & .. \\
a_{n1} & a_{n2} & .. & a_{nn}
\end{vmatrix}

锟斤拷锟洁辑时锟斤拷: 2023-04-25 00:34:50