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Macaulay2 > The Macaulay2 language > operators > ~

~ -- a unary postfix operator

Ways to use `~` :

Module ~ -- make a coherent sheaf
Ring ~ -- make the structure sheaf

For the programmer

The object ~ is a keyword.

This operator may be used as a postfix unary operator in an expression like x ~. The user may install a method for handling such expressions with code such as

         X ~   := (x,y) -> ...

where X is the class of x.