1、画出函数y=x*sin(x)

2、用曲面表示z=x^2+y^2

3、创建n阶魔方矩阵，n能被4整除

4、三维图形影片动画

5、画出N=100，p=0.5情况下二项分布的概率 特性曲线-1, draw the function y = x* sin (x)

2, using surfaces to describe z = x ^ 2+ y ^ 2

3, create a cube matrix of order n, n be divisible by 4

4, 3D graphics, animation film

5, draw N = 100, p = 0.5 case, the binomial probability curve