(self)
return self._exp == 'F'
Return True if self is infinite; otherwise return False.
Return True if self is infinite; otherwise return False.
Return True if self is infinite ; otherwise return False .
def is_infinite(self):
        """Return True if self is infinite; otherwise return False."""
        return self._exp == 'F'
def is_infinite ( self ) : return self . _exp == 'F'