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feat: update the example and comment about \varnothing #16

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Apr 12, 2023
Merged

feat: update the example and comment about \varnothing #16

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7babf01
feat: update code example for `\varnothing`
Myriad-Dreamin Apr 12, 2023
a8b7ea2
feat: update comment to `\varnothing`
Myriad-Dreamin Apr 12, 2023
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15 changes: 10 additions & 5 deletions undergradmath.typ
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Original file line number Diff line number Diff line change
Expand Up @@ -168,7 +168,7 @@ Getting script letters is @unavailable.
cell($subset$, `subset`), cell($bb(Q)$, [`QQ`, `bb(Q)`]), cell($not$, `not`),
cell($subset.eq$, `subset.eq`), cell($bb(N)$, [`NN`, `bb(N)`]), cell($or$, `or`),
cell($supset$, `supset`), cell($bb(C)$, [`CC`, `bb(C)`]), cell($and$, `and`),
cell($supset.eq$, `supset.eq`), cell($Ø$, [`Ø`@tricky]), cell($tack.r$, `tack.r`),
cell($supset.eq$, `supset.eq`), cell($diameter$, [`diameter`]), cell($tack.r$, `tack.r`),
cell($in$, `in`), cell($nothing$, `nothing`), cell($models$, `models`),
cell($in.not$, `in.not`), cell($alef$, `alef`), cell($without$, `without`),
))
Expand All @@ -188,10 +188,15 @@ Get the set complement $A^(sans(c))$ with `A^(sans(c))` (or $A^(complement)$ wit
// The Math fonts provide the character \varnothing, an alternative to \emptyset,
// through Character Variant cv01. The fontsetup package provides the option
// 'varnothing' to easily switch to the alternative character.
//
/ Remark: The character $Ø$ from `\varnothing` in #LaTeX is an alternative character of $nothing$ from `nothing` in Typst (`\emptyset` in #LaTeX).
See the Version 3.93 section of README at #link("https://www.ctan.org/tex-archive/fonts/newcomputermodern").
You can create the `\varnothing` character with a `let` binding using specific fonts.

// https://mirrors.sustech.edu.cn/CTAN/fonts/newcomputermodern/doc/newcm-doc.pdf
// The NewComputerModern FontFamily §13.3
// The Math fonts provide the character \varnothing (⌀, U+2300), as an alternative to \emptyset (a slashed zero), through Character Variant cv01.
// The fontsetup package provides the option ‘varnothing’ to easily switch to the alternative character.

/ Remark: Using `diameter` for `\varnothing` may cause some confusion. However, #LaTeX also uses $diameter$ (`\u{2300}`) instead of $\u{2205}$ (`\u{2205}`), see #link("https://mirrors.sustech.edu.cn/CTAN/fonts/newcomputermodern/doc/newcm-doc.pdf")[newcm $section$13.3].
Another solution is to use `text(font: "Fira Sans", nothing)`, but the resultant glyph $text(font: "Fira Sans", nothing)$ is subtly different from the widely used one.
Ultimately, The choice is always *your decision*.

= Decorations
#align(center, table(
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