syms x y = x^2+2*x+1 simplify(y) syms x y = (x+1)^2+(x-3)^3+(2*x-1/2)^2 expand(y) 绘制函数图像: 如果想标注相交点可以: 相关文章: 2021-12-07 2021-10-25 2021-09-24 2022-12-23 2021-12-19 2021-12-09 2021-11-16