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Macaulay2Doc > The Macaulay2 language > operators > ||

|| -- a binary operator, often used for vertical concatenation

Ways to use || :

For the programmer

The object || is a keyword.

This operator may be used as a binary operator in an expression like x||y. The user may install binary methods for handling such expressions with code such as

         X || Y := (x,y) -> ...

where X is the class of x and Y is the class of y.