Matrix mistakenly deployed

[Toflamus]

The original code:

\begin{equation}
\begin{bmatrix}
z[s+1]\
\vec i_r[s+1]\
h[s+1]\
\end{bmatrix}
=
\begin{bmatrix}
1 & 0 & 0\
0 & \mathbb A_{RC} & 0 \
0 & 0 & A_H\
\end{bmatrix}
\begin{bmatrix}
z[s]\
\vec i_r[s]\
h[s]\
\end{bmatrix}
+
\begin{bmatrix}
-\frac{\eta [s] \Delta t}{Q} & 0\
\vec b_{RC} & 0\
0 & A_H-1
\end{bmatrix}
\begin{bmatrix}
I & sgn(I)\
\end{bmatrix}
\end{equation}
However, it ends up to be sth like this:

While it looks good in my .md file previewer

Anybody can help thank you!

[george-gca]

We use MathJax to render LaTeX code. If it doesn't handle your code well, I am afraid there is not much we can do. You can do some test in their live demo site.

[Toflamus]

Thanks! However, I tried several other times and found my code works perfectly fine on the MathJax website but just fail to work on the blog.

[alshedivat]

try using \\ instead of \ for line breaks in the matrices:

\begin{equation}
\begin{bmatrix}
z[s+1] \\
\vec i_r[s+1] \\
h[s+1]
\end{bmatrix}
=
\begin{bmatrix}
1 & 0 & 0 \\
0 & \mathbb A_{RC} & 0 \\
0 & 0 & A_H
\end{bmatrix}
\begin{bmatrix}
z[s] \\
\vec i_r[s] \\
h[s]
\end{bmatrix}
+
\begin{bmatrix}
-\frac{\eta [s] \Delta t}{Q} & 0 \\
\vec b_{RC} & 0 \\
0 & A_H-1
\end{bmatrix}
\begin{bmatrix}
I & sgn(I)
\end{bmatrix}
\end{equation}

[Toflamus]

Thanks! Actually, the original code is \\. I do not know why, but after copying and pasting it becomes a \. Thank you for your help!