{"route":"/en-US-v0.14.1/reference/math/lr/","title":"Left/Right","description":"Documentation for the lr functions.","part":null,"outline":[{"id":"summary","name":"Summary","children":[]},{"id":"example","name":"Example","children":[]},{"id":"functions","name":"Functions","children":[{"id":"functions-lr","name":"Left/Right","children":[{"id":"functions-lr-size","name":"size","children":[]},{"id":"functions-lr-body","name":"body","children":[]}]},{"id":"functions-mid","name":"Mid","children":[{"id":"functions-mid-body","name":"body","children":[]}]},{"id":"functions-abs","name":"Abs","children":[{"id":"functions-abs-size","name":"size","children":[]},{"id":"functions-abs-body","name":"body","children":[]}]},{"id":"functions-norm","name":"Norm","children":[{"id":"functions-norm-size","name":"size","children":[]},{"id":"functions-norm-body","name":"body","children":[]}]},{"id":"functions-floor","name":"Floor","children":[{"id":"functions-floor-size","name":"size","children":[]},{"id":"functions-floor-body","name":"body","children":[]}]},{"id":"functions-ceil","name":"Ceil","children":[{"id":"functions-ceil-size","name":"size","children":[]},{"id":"functions-ceil-body","name":"body","children":[]}]},{"id":"functions-round","name":"Round","children":[{"id":"functions-round-size","name":"size","children":[]},{"id":"functions-round-body","name":"body","children":[]}]}]}],"body":{"kind":"group","content":{"name":"lr","title":"Left/Right","details":"

Delimiter matching.

\n

The lr function allows you to match two delimiters and scale them with the\ncontent they contain. While this also happens automatically for delimiters\nthat match syntactically, lr allows you to match two arbitrary delimiters\nand control their size exactly. Apart from the lr function, Typst provides\na few more functions that create delimiter pairings for absolute, ceiled,\nand floored values as well as norms.

\n

To prevent a delimiter from being matched by Typst, and thus auto-scaled,\nescape it with a backslash. To instead disable auto-scaling completely, use\nset math.lr(size: 1em).

\n

Example

\n
$ [a, b/2] $\n$ lr(]sum_(x=1)^n], size: #50%) x $\n$ abs((x + y) / 2) $\n$ \\{ (x / y) \\} $\n#set math.lr(size: 1em)\n$ { (a / b), a, b in (0; 1/2] } $\n
\"Preview\"
","functions":[{"path":["math"],"name":"lr","title":"Left/Right","keywords":[],"oneliner":"Scales delimiters.","element":true,"contextual":false,"deprecationMessage":null,"deprecationUntil":null,"details":[{"kind":"html","content":"

Scales delimiters.

\n

While matched delimiters scale by default, this can be used to scale\nunmatched delimiters and to control the delimiter scaling more precisely.

"}],"self":false,"params":[{"name":"size","details":[{"kind":"html","content":"

The size of the brackets, relative to the height of the wrapped content.

"}],"types":["relative"],"strings":[],"default":"100% + 0pt","positional":false,"named":true,"required":false,"variadic":false,"settable":true},{"name":"body","details":[{"kind":"html","content":"

The delimited content, including the delimiters.

"}],"types":["content"],"strings":[],"default":null,"positional":true,"named":false,"required":true,"variadic":false,"settable":false}],"returns":["content"],"scope":[]},{"path":["math"],"name":"mid","title":"Mid","keywords":[],"oneliner":"Scales delimiters vertically to the nearest surrounding `{lr()}` group.","element":true,"contextual":false,"deprecationMessage":null,"deprecationUntil":null,"details":[{"kind":"html","content":"

Scales delimiters vertically to the nearest surrounding lr() group.

"},{"kind":"example","content":{"body":"
$ { x mid(|) sum_(i=1)^n w_i|f_i (x)| < 1 } $\n
\"Preview\"
","title":null}}],"self":false,"params":[{"name":"body","details":[{"kind":"html","content":"

The content to be scaled.

"}],"types":["content"],"strings":[],"default":null,"positional":true,"named":false,"required":true,"variadic":false,"settable":false}],"returns":["content"],"scope":[]},{"path":["math"],"name":"abs","title":"Abs","keywords":[],"oneliner":"Takes the absolute value of an expression.","element":false,"contextual":false,"deprecationMessage":null,"deprecationUntil":null,"details":[{"kind":"html","content":"

Takes the absolute value of an expression.

"},{"kind":"example","content":{"body":"
$ abs(x/2) $\n
\"Preview\"
","title":null}}],"self":false,"params":[{"name":"size","details":[{"kind":"html","content":"

The size of the brackets, relative to the height of the wrapped content.

"}],"types":["relative"],"strings":[],"default":null,"positional":false,"named":true,"required":false,"variadic":false,"settable":false},{"name":"body","details":[{"kind":"html","content":"

The expression to take the absolute value of.

"}],"types":["content"],"strings":[],"default":null,"positional":true,"named":false,"required":true,"variadic":false,"settable":false}],"returns":["content"],"scope":[]},{"path":["math"],"name":"norm","title":"Norm","keywords":[],"oneliner":"Takes the norm of an expression.","element":false,"contextual":false,"deprecationMessage":null,"deprecationUntil":null,"details":[{"kind":"html","content":"

Takes the norm of an expression.

"},{"kind":"example","content":{"body":"
$ norm(x/2) $\n
\"Preview\"
","title":null}}],"self":false,"params":[{"name":"size","details":[{"kind":"html","content":"

The size of the brackets, relative to the height of the wrapped content.

"}],"types":["relative"],"strings":[],"default":null,"positional":false,"named":true,"required":false,"variadic":false,"settable":false},{"name":"body","details":[{"kind":"html","content":"

The expression to take the norm of.

"}],"types":["content"],"strings":[],"default":null,"positional":true,"named":false,"required":true,"variadic":false,"settable":false}],"returns":["content"],"scope":[]},{"path":["math"],"name":"floor","title":"Floor","keywords":[],"oneliner":"Floors an expression.","element":false,"contextual":false,"deprecationMessage":null,"deprecationUntil":null,"details":[{"kind":"html","content":"

Floors an expression.

"},{"kind":"example","content":{"body":"
$ floor(x/2) $\n
\"Preview\"
","title":null}}],"self":false,"params":[{"name":"size","details":[{"kind":"html","content":"

The size of the brackets, relative to the height of the wrapped content.

"}],"types":["relative"],"strings":[],"default":null,"positional":false,"named":true,"required":false,"variadic":false,"settable":false},{"name":"body","details":[{"kind":"html","content":"

The expression to floor.

"}],"types":["content"],"strings":[],"default":null,"positional":true,"named":false,"required":true,"variadic":false,"settable":false}],"returns":["content"],"scope":[]},{"path":["math"],"name":"ceil","title":"Ceil","keywords":[],"oneliner":"Ceils an expression.","element":false,"contextual":false,"deprecationMessage":null,"deprecationUntil":null,"details":[{"kind":"html","content":"

Ceils an expression.

"},{"kind":"example","content":{"body":"
$ ceil(x/2) $\n
\"Preview\"
","title":null}}],"self":false,"params":[{"name":"size","details":[{"kind":"html","content":"

The size of the brackets, relative to the height of the wrapped content.

"}],"types":["relative"],"strings":[],"default":null,"positional":false,"named":true,"required":false,"variadic":false,"settable":false},{"name":"body","details":[{"kind":"html","content":"

The expression to ceil.

"}],"types":["content"],"strings":[],"default":null,"positional":true,"named":false,"required":true,"variadic":false,"settable":false}],"returns":["content"],"scope":[]},{"path":["math"],"name":"round","title":"Round","keywords":[],"oneliner":"Rounds an expression.","element":false,"contextual":false,"deprecationMessage":null,"deprecationUntil":null,"details":[{"kind":"html","content":"

Rounds an expression.

"},{"kind":"example","content":{"body":"
$ round(x/2) $\n
\"Preview\"
","title":null}}],"self":false,"params":[{"name":"size","details":[{"kind":"html","content":"

The size of the brackets, relative to the height of the wrapped content.

"}],"types":["relative"],"strings":[],"default":null,"positional":false,"named":true,"required":false,"variadic":false,"settable":false},{"name":"body","details":[{"kind":"html","content":"

The expression to round.

"}],"types":["content"],"strings":[],"default":null,"positional":true,"named":false,"required":true,"variadic":false,"settable":false}],"returns":["content"],"scope":[]}],"global_attributes":[]}}}