精选优质文档-倾情为你奉上1.碟形弹簧圓柱坐标方程:r = 5theta = t*3600z =(sin(3.5*theta-90)+24*t2.葉形线.笛卡儿坐標标方程:a=10x=3*a*t/(1+(t3)y=3*a*(t2)/(1+(t3)3.螺旋线(Helical curve)圆柱坐标(cylindrical)方程: r=ttheta=10+t*(20*360)z=t*34.蝴蝶曲线球坐标方程:rho = 8 * ttheta = 360 * t * 4phi = -360 * t * 85.渐开线采用笛卡尔坐标系方程:r=1ang=360*ts=2*pi*r*tx0=s*cos(ang)y0=s*sin(ang)x=x0+s*sin(ang)y=y0-s*cos(ang)z=06.螺旋线.笛卡儿坐标方程:x = 4 * cos ( t *(5*360)y = 4 * sin ( t *(5*360)z = 10*t7.对数曲线笛卡尔坐标系方程:z=0x = 10