# Some test 

:::{note}
This is a notification info box inside Sphinx documentation. It contains a math equation

$$e^{i \pi} + 1 = 0$$

Greek letters $\alpha, \theta$ and $\Sigma$ also work.

This is a matrix:

$$
\begin{bmatrix}
a & b & c \\
d & e & f \\
g & h & i
\end{bmatrix}
$$
:::