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• 数式
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• Cases

cases Element

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",
) $

引数

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

delim

none str array 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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