Forpersonaluseonlyinstudyandresearch;mercialuse各种曲线方程集合::r=5theta=t*3600z=(sin(*theta-90>>+24*:a=10x=3*a*t/(1+(t^3>>y=3*a*(t^2>/(1+(t^3>>(Helicalcurve>圆柱坐标<cylindrical)方程:r=ttheta=10+t*(20*360>z=t*:rho=8*ttheta=360*t*4phi=-360*t*: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=:x=4*cos(t*(5*360>>y=4*sin(t*(5*360>>z=10*:z=0x=10*ty=log(10*t+>:rho=4theta=t*180phi=t*360*:l===3*b*cos(t*360>+l*cos(3*t*360>Y=3*b*sin(t*360>+l*sin(3*t*360>:a=5x=a*(cos(t*360>>^3y=a*(sin(t*360>>^:a=10r=a*(1+cos(theta>>theta=t*360LDAYtRyKfE
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