Underarrow & Overarrow #3345
davidleejy
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Experimented with Typst Code in screenshot: *Method 1*: Use attach.
1. Nested attach():
$⋃_(α ∈ Λ)^(\(p\)) O_α attach(=, b: attach(arrow.b, b: #text(size:1.5em)[by Defn 1.2]) ) X - A - B$
2. Single attach():
$⋃_(α ∈ Λ)^(\(p\)) O_α attach(=, b: &arrow.b\ &"by Defn 1.2" ) X - A - B$
There's probably a center alignment that could be added here to help the ↓ be aligned directly under the = symbol.
*Method 2*: Use alignment `&` and newline `\` symbols.
Here the vertical gaps are a bit too wide. =to be aethetically pleasing.
$⋃_(α ∈ Λ)^(\(p\)) O_α &= X - A - B \
& arrow.b \
& "by Defn 1.2"$
*Method 3*: Rely on under- and overbraces.
$⋃_(α ∈ Λ)^(\(p\)) O_α underbrace(=,"by Defn 1.2") X - A - B$ |
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One package that appears worth trying is PinIt https://github.com/OrangeX4/typst-pinit |
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Does anyone else think having under- and overarrows (much like under- and overbraces) is a great idea?
Can't help but feel that under- or overbracing on a single symbol (e.g., = symbol) can come off a tad un-aesthetic.
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