Function: type/Open - checks for the Open property
Calling Sequence:
type(n, Open);
Parameters:
n - any algebraic expression
Description:
The call type(n, Open) checks whether n is a `call` to the Open property , i.e. whether n is of type function and op(n, 'Open'); if so, it returns true, and false otherwise.
This type is part of the `math` package and automatically initialized when this package is loaded.
Examples:
> with(math):
> type(Open(2), Open);
> type(-1, Open);
See Also:
type , type/range , type/RealRange .
Version History:
Version 1.0 as of December 30, 1997