Method is_snan

tools/python-3.11.9-amd64/Lib/_pydecimal.py:3161–3163

Return True if self is a signaling NaN; otherwise return False.

(self)

        return self._sign == 1

    def is_snan(self):
        """Return True if self is a signaling NaN; otherwise return False."""
        return self._exp == 'N'

    def is_subnormal(self, context=None):
        """Return True if self is subnormal; otherwise return False."""