(self)
return self._exp in ('n', 'N')
Return True if self is a qNaN or sNaN; otherwise return False.
Return True if self is a qNaN or sNaN; otherwise return False.
Return True if self is a qNaN or sNaN ; otherwise return False .
def is_nan(self):
        """Return True if self is a qNaN or sNaN; otherwise return False."""
        return self._exp in ('n', 'N')
def is_nan ( self ) : return self . _exp in ( 'n' , 'N' )