[快车下载]52.jpg:
53.螺旋上升曲线 r=t^10
theta=t^3*360*6*3+t^3*360*3*3 z=t^3*(t+1)
[快车下载]53.jpg:
54.蘑菇曲线 rho=t^3+t*(t+1) theta=t*360 phi=t^2*360*20*20
[快车下载]54.jpg:
55. 8字曲线 a=1 b=1
x=3*b*cos(t*360)+a*cos(3*t*360) Y=b*sin(t*360)+a*sin(3*t*360)
[快车下载]55.jpg:
56.梅花曲线 theta=t*360
r=100+50*cos(5*theta) z=2*cos(5*theta) [快车下载]56.jpg:
57.桃形曲线 rho=t^3+t*(t+1)
theta=t*360 phi=t^2*360*10*10
[快车下载]57.jpg:
58.名稱:碟形弹簧 建立環境:pro/e 圓柱坐 r = 5
theta = t*3600
z =(sin(3.5*theta-90))+24
[快车下载]58.jpg:
59.环形二次曲线 笛卡儿方程:
x=50*cos(t*360) y=50*sin(t*360) z=10*cos(t*360*8)