vars -- variables

Ways to use vars :

• vars(List) -- a sequence of variables
• vars(Sequence) -- see vars(List) -- a sequence of variables
• vars(ZZ) -- see vars(List) -- a sequence of variables
• vars(Monoid) -- list of variables in a monoid
• vars(Ring) -- row matrix of the variables

For the programmer

The object vars is a method function with a single argument.