# <a id="heading_1"></a>Formula and image check

Inline $E=mc^{2}$ and $\frac{a}{b}$.

$\sqrt{x^{2}+y^{2}}=\frac{1}{2}$

$[\begin{matrix} 1 & 2 \\ 3 & 4 \end{matrix}]$

![Local fixture](<assets/image-1.png>)

![Mermaid diagram](<assets/image-2.png>)