Anki complains about the translated latex syntax

[louietan]

Anki can't process the content transformed from the snippet below

\begin{vmatrix}
a_{1,1} & a_{1,2} & \cdots & a_{1,n} \\
a_{2,1} & a_{2,2} & \cdots & a_{2,n} \\
\vdots  & \vdots  & \ddots & \vdots  \\
a_{m,1} & a_{m,2} & \cdots & a_{m,n}
\end{vmatrix}

which becomes

<p>
[latex]    \begin{vmatrix}
    a_{1,1} & a_{1,2} & \cdots & a_{1,n} \\
    a_{2,1} & a_{2,2} & \cdots & a_{2,n} \\
    \vdots  & \vdots  & \ddots & \vdots  \\
    a_{m,1} & a_{m,2} & \cdots & a_{m,n}
    \end{vmatrix}
[/latex]</p>

Anki reports an error saying "Missing $ inserted".
It works when modified to the following style

<p>
[$]    \begin{vmatrix}
    a_{1,1} & a_{1,2} & \cdots & a_{1,n} \\
    a_{2,1} & a_{2,2} & \cdots & a_{2,n} \\
    \vdots  & \vdots  & \ddots & \vdots  \\
    a_{m,1} & a_{m,2} & \cdots & a_{m,n}
    \end{vmatrix}
[/$]</p>

[louietan]

I don't have much experience with latex, but AFAIK the snippet in question should be surrounded with either inline or displayed math delimiters, so it seems to be the problem of the input, not the translation.
The last one works because [$] CONTENTS [/$] in Anki is just the shortened version of [latex]\begin{math} CONTENTS \end{math}[/latex]