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• Cases

casesElement

Element functions can be customized with set and show rules.

A case distinction.

Content across different branches can be aligned with the & symbol.

Example

$ f(x, y) := cases(
  1 "if" (x dot y)/2 <= 0,
  2 "if" x "is even",
  3 "if" x in NN,
  4 "else",
) $

Parameters

Parameters are the inputs to a function. They are specified in parentheses after the function name.

delim

none or str or array or symbol

Settable

Settable parameters can be customized for all following uses of the function with a set rule.

The delimiter to use.

Can be a single character specifying the left delimiter, in which case the right delimiter is inferred. Otherwise, can be an array containing a left and a right delimiter.

Default: ("{", "}")

View example

#set math.cases(delim: "[")
$ x = cases(1, 2) $

reverse

bool

Settable

Settable parameters can be customized for all following uses of the function with a set rule.

Whether the direction of cases should be reversed.

Default: false

View example

#set math.cases(reverse: true)
$ cases(1, 2) = x $

gap

relative

Settable

Settable parameters can be customized for all following uses of the function with a set rule.

The gap between branches.

Default: 0% + 0.2em

View example

#set math.cases(gap: 1em)
$ x = cases(1, 2) $

children

content

RequiredPositional

Positional parameters are specified in order, without names.

Variadic

Variadic parameters can be specified multiple times.

The branches of the case distinction.

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