热带鱼  a=5 t=1 xt=(a*(cos(t*360*3))^4)*t yt=(a*(sin(t*360*3))^4)*t 双蝴蝶线  t=1 theta=t*360+90 r=cos(360*t*5)*3+0.5 zt=cos(360*t*3)*3  t=1 theta=t*360+18 r=cos(360*t*5)*0.75+3.5 zt=cos(t*360*5)*0.4  t=1 theta=t*360-54 r=cos(360*t*5)*0.5+2.5 zt=cos(t*360*5+90)*0.5 |
