Under/Over
Delimiters above or below parts of an equation.
The braces and brackets further allow you to add an optional annotation below or above themselves.
These functions are intended specifically for adding delimiters. If you want to place two arbitrary parts of an equation over or under one another, without delimiters, use the attach function instead.
函数
underline元素自始可用
A horizontal line under content.
展开示例
$ underline(1 + 2 + ... + 5) $
body
The content above the line.
overline元素自始可用
A horizontal line over content.
展开示例
$ overline(1 + 2 + ... + 5) $
body
The content below the line.
underbrace元素自始可用
A horizontal brace under content, with an optional annotation below.
展开示例
$ underbrace(0 + 1 + dots.c + n, n + 1 "numbers") $
body
The content above the brace.
annotation默认值：none
The optional content below the brace.
overbrace元素自始可用
A horizontal brace over content, with an optional annotation above.
展开示例
$ overbrace(0 + 1 + dots.c + n, n + 1 "numbers") $
body
The content below the brace.
annotation默认值：none
The optional content above the brace.
underbracket元素自始可用
A horizontal bracket under content, with an optional annotation below.
展开示例
$ underbracket(0 + 1 + dots.c + n, n + 1 "numbers") $
body
The content above the bracket.
annotation默认值：none
The optional content below the bracket.
overbracket元素自始可用
A horizontal bracket over content, with an optional annotation above.
展开示例
$ overbracket(0 + 1 + dots.c + n, n + 1 "numbers") $
body
The content below the bracket.
annotation默认值：none
The optional content above the bracket.
underparen元素自始可用
A horizontal parenthesis under content, with an optional annotation below.
展开示例
$ underparen(0 + 1 + dots.c + n, n + 1 "numbers") $
body
The content above the parenthesis.
annotation默认值：none
The optional content below the parenthesis.
overparen元素自始可用
A horizontal parenthesis over content, with an optional annotation above.
展开示例
$ overparen(0 + 1 + dots.c + n, n + 1 "numbers") $
body
The content below the parenthesis.
annotation默认值：none
The optional content above the parenthesis.
undershell元素自始可用
A horizontal tortoise shell bracket under content, with an optional annotation below.
展开示例
$ undershell(0 + 1 + dots.c + n, n + 1 "numbers") $
body
The content above the tortoise shell bracket.
annotation默认值：none
The optional content below the tortoise shell bracket.
overshell元素自始可用
A horizontal tortoise shell bracket over content, with an optional annotation above.
展开示例
$ overshell(0 + 1 + dots.c + n, n + 1 "numbers") $
body
The content below the tortoise shell bracket.
annotation默认值：none
The optional content above the tortoise shell bracket.