test inline math \( \pi \)
$$ \begin{align*} y &\approx f_\theta \circ g_\phi (y) \\ x &\approx g_\phi \circ f_\theta (x) \\ \end{align*} $$
test inline math \( \pi \)
$$ \begin{align*} y &\approx f_\theta \circ g_\phi (y) \\ x &\approx g_\phi \circ f_\theta (x) \\ \end{align*} $$