

\documentclass{article}
\usepackage[tracing]{luamml-demo}

\usepackage{unicode-math}

\begin{document}


\[
  \begin{pmatrix}
    1 & 0 & 0 \\
    0 & 1 & 0 \\
    0 & 0 & 1
  \end{pmatrix}
  =
  \begin{cases}
    1 & $if $a=b\\
    2 & $else$
  \end{cases}
\]

\[
  x = \frac{-b \pm \sqrt{b^2-4ac}}{2a}.
\]

\[
  \sum_a\underline c\dot bc'
\]

\begin{align}
  abc&=def & e^{\mathrm{i}\pi}&=-1\\
  \Big(1+2&=3\Big)\\
  5
\end{align}

$\sin(x)-\sin(x+2\pi)=0$.

$\left| A \right|$

\end{document}
