TestMath

$E=mc^{2}$

$A=\int _{0}^{1}{\frac {\ln {x}}{x}}\,\mathrm {d} x$

Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \begin{split} a& =b+c-d\\ & \quad +e-f\\ & =g+h\\ & =i \end{split} }