# The `luamathalign` package for LuaLaTeX
With `amsmath`'s `align` environment simple equations can be aligned easily, e.g.
```tex
2 &=1+1\\
2-1&=1
```
but even just adding an underline makes this much more complicated. E.g.
```tex
2 &=1+1\\
\underline{2-1&=1}
```
is not allowed. Similarly alignment points surrounded by `\left` and `\right`
or points nested in other environments do not work.
For LuaLaTeX this can be solved with luamathalign. It adds a command `\AlignHere`
which behaves mustly like `&` except that it's allowed almost anywhere. E.g.
```
2 &= 1+1\\
\underline{2-1 \AlignHere= 1}
```
Licensed under the LPPL v1.3c or later.
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