(x-2)^2+(y-1)^2+(z-4)^2 = 100怎么换成参数方程啊?
问题描述:
(x-2)^2+(y-1)^2+(z-4)^2 = 100怎么换成参数方程啊?
答
x=2+10cosucosv
y=1+10cosusinv
z=4+10sinu