rings.py 文件源码

def mul(self, *objs):
        """
        Multiply a sequence of polynomials or containers of polynomials.

        Example
        -------
        >>> from sympy.polys.rings import ring
        >>> from sympy.polys.domains import ZZ

        >>> R, x = ring("x", ZZ)
        >>> R.mul([ x**2 + 2*i + 3 for i in range(4) ])
        x**8 + 24*x**6 + 206*x**4 + 744*x**2 + 945
        >>> _.factor_list()
        (1, [(x**2 + 3, 1), (x**2 + 5, 1), (x**2 + 7, 1), (x**2 + 9, 1)])

        """
        p = self.one

        for obj in objs:
            if is_sequence(obj, include=GeneratorType):
                p *= self.mul(*obj)
            else:
                p *= obj

        return p