frac元素自始可用
A mathematical fraction.
Example
$ 1/2 < (x+1)/2 $
$ ((x+1)) / 2 = frac(a, b) $
Syntax
This function also has dedicated syntax: Use a slash to turn neighbouring expressions into a fraction. Multiple atoms can be grouped into a single expression using round grouping parentheses. Such parentheses are removed from the output, but you can nest multiple to force them.
参数
num
The fraction’s numerator.
denom
The fraction’s denominator.
style默认值："vertical"
How the fraction should be laid out.
展开示例：Styles
$ frac(x, y, style: "vertical") $
$ frac(x, y, style: "skewed") $
$ frac(x, y, style: "horizontal") $
展开示例：Setting the default
#set math.frac(style: "skewed")
$ a / b $
展开示例：Handling of grouping parentheses
// Grouping parentheses are removed.
#set math.frac(style: "vertical")
$ (a + b) / b $
// Grouping parentheses are removed.
#set math.frac(style: "skewed")
$ (a + b) / b $
// Grouping parentheses are retained.
#set math.frac(style: "horizontal")
$ (a + b) / b $
展开示例：Different styles in inline vs block equations
// This changes the style for inline equations only.
#show math.equation.where(block: false): set math.frac(style: "horizontal")
This $(x-y)/z = 3$ is inline math, and this is block math:
$ (x-y)/z = 3 $
展开示例：Use LaTeX-like convention
// Change the default style.
#set math.frac(style: "horizontal")
// Define a shorthand with the original style.
#let frac = math.frac.with(style: "vertical")
$ p/q = frac(p, q) $
// The shadowed definition can still be accessed.
#assert.eq($p/q$, $std.math.frac(p, q)$)
| Variant | Details |
|---|---|
"vertical" | Stacked numerator and denominator with a bar. |
"skewed" | Numerator and denominator separated by a slash. |
"horizontal" | Numerator and denominator placed inline and parentheses are not absorbed. |