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7.38 Use

Braces are used to link two or more lines of writing:

example of braces used to link two or more lines of writing

They are also used to group items in formulas and equations. See 7.39 Multiples.

7.39 Multiples

In mathematical usage, the preferred order for multiple brackets is as follows:

  • {[( {[(     )]} )]}

Note that square brackets enclose round brackets, in contrast to the practice in non-mathematical usage.