(self, sm)
return self._quotient_domain(sm)
Return ``self`` with domain replaced by ``domain/sm``.

        Here ``sm`` must be a submodule of ``self.kernel()``.

        >>> from sympy import QQ
        >>> from sympy.abc import x
        >>> from sympy.polys.agca import homomorphism

        >>> F = QQ.old_poly_ring(x).free_module(2)
        >>> h = homomorphism(F, F, [[1, 0], [x, 0]])
        >>> h
        Matrix([
        [1, x], : QQ[x]**2 -> QQ[x]**2
        [0, 0]])
        >>> h.quotient_domain(F.submodule([-x, 1]))
        Matrix([
        [1, x], : QQ[x]**2/<[-x, 1]> -> QQ[x]**2
        [0, 0]])
Return ``self`` with domain replaced by ``domain/sm``.
Return self with domain replaced by domain / sm .
def quotient_domain(self, sm):
        """
        Return ``self`` with domain replaced by ``domain/sm``.

        Here ``sm`` must be a submodule of ``self.kernel()``.

        >>> from sympy import QQ
        >>> from sympy.abc import x
        >>> from sympy.polys.agca import homomorphism

        >>> F = QQ.old_poly_ring(x).free_module(2)
        >>> h = homomorphism(F, F, [[1, 0], [x, 0]])
        >>> h
        Matrix([
        [1, x], : QQ[x]**2 -> QQ[x]**2
        [0, 0]])
        >>> h.quotient_domain(F.submodule([-x, 1]))
        Matrix([
        [1, x], : QQ[x]**2/<[-x, 1]> -> QQ[x]**2
        [0, 0]])
        """
        if not self.kernel().is_submodule(sm):
            raise ValueError('kernel %s must contain sm, got %s' %
                             (self.kernel(), sm))
        if sm.is_zero():
            return self
        return self._quotient_domain(sm)
def quotient_domain ( self , sm ) : if not self . kernel ( ) . is_submodule ( sm ) : raise ValueError ( 'kernel %s must contain sm, got %s' % ( self . kernel ( ) , sm ) ) if sm . is_zero ( ) : return self return self . _quotient_domain ( sm )