Did I find the right examples for you? yes no

All Samples(1)  |  Call(1)  |  Derive(0)  |  Import(0)

src/s/y/sympy-polys-HEAD/sympy/simplify/cse_opts.py   sympy-polys(Download)
    def _eval_subs(self, old, new):
        if self==old:
            return new
        else:
            return self.__class__(*[s._eval_subs(old, new) for s in self.args ])