]; ans1 = sym2poly(poly2sym(p)+poly2sym(s));%和 ans2 = sym2poly(poly2sym(p)-poly2sym(s));%差 ans3 = sym2poly(poly2sym(p)*poly2sym(s));%积 ans4 =poly2sym(p)/poly2sym(s);%商 ans5 = roots(p);%
用高等数学中的泰勒公式化就行了