Left/Right functions
Delimiter matching.
The lr function allows you to match two delimiters and scale them with the content they contain. While this also happens automatically for delimiters that match syntactically, lr allows you to match two arbitrary delimiters and control their size exactly. Apart from the lr function, Typst provides a few more functions that create delimiter pairings for absolute, ceiled, and floored values as well as norms.
Example
$ [a, b/2] $
$ lr(]sum_(x=1)^n] x, size: #50%) $
$ abs((x + y) / 2) $
Functions
lrElementElement functions can be customized with set and show rules.
set and show rules.Scales delimiters.
While matched delimiters scale by default, this can be used to scale unmatched delimiters and to control the delimiter scaling more precisely.
sizeauto or relativeSettableSettable parameters can be customized for all following uses of the function with a set rule.
set rule.The size of the brackets, relative to the height of the wrapped content.
Default: auto
body
The delimited content, including the delimiters.
abs
Takes the absolute value of an expression.
$ abs(x/2) $
body
The expression to take the absolute value of.
norm
Takes the norm of an expression.
$ norm(x/2) $
body
The expression to take the norm of.
floor
Floors an expression.
$ floor(x/2) $
body
The expression to floor.
ceil
Ceils an expression.
$ ceil(x/2) $
body
The expression to ceil.
round
Rounds an expression.
$ round(x/2) $
body
The expression to round.