Typora is not ideal. It could not 100% render math expression like Joplin.
For example, Typora can render this:
$$
f{'}(x_0)=\lim_{\Delta x \rightarrow 0} \frac{\Delta y}{\Delta x}=\lim_{\Delta x \rightarrow 0} \frac{f(x_0 + \Delta x)-f(x_0)}{\Delta x}
$$
but it could not render this: $\Delta x$
So, opening note using Joplin editor is the most ideal way.
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