multiline does not work for math

[cpraveen]

multiline from amsmath is mentioned here

https://mystmd.org/guide/math

but it does not render correctly. E.g.,

\begin{multiline}
x = a + b \\ 
c + d
\end{multiline}

does not render correctly.

[cpraveen]

Actually there is a multline in amsmath

https://www.overleaf.com/learn/latex/Aligning_equations_with_amsmath

but this also does not work in mystmd.

[FreekPols]

$$
\begin{align*}
ax+b\
z=f(x)
\end{align}
$$

[rowanc1]

The spelling was incorrect in the docs. It also seems that this environment is not supported in KaTeX. See here for demo.

Changing this to an align environment is likely the best workaround, but that should be done programatically.