I want this in the Markdown language.
I try the following code (that works for LaTeX):
\begin{equation}
\begin{bmatrix}
1 & 2 \\
3 & 4
\end{bmatrix}
\label{eq:aeqn}
\end{equation}
But it's not working for the Markdown language. It only create the matrix, but it does not label a number.