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Macaulay2Doc > The Macaulay2 language > operators > <<

<< -- a binary operator (file output, ...)

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.

This operator may be used as a prefix unary operator in an expression like <<y. The user may install a method for handling such expressions with code such as

           << Y := (y) -> ...

where Y is the class of y.