>>176の図 http://imgur.com/COjPBtG.png を、
媒介変数表示でグラフ化アニメーションさせてみた
http://imgur.com/bDbk30p.gif
@
x=0
y=0.7*sin(t*2*PI)
z=0.7*cos(t*2*PI)

A
x=0
y=sin(t*2*PI)*0.1*(sin(t*50*PI)+6)
z=cos(t*2*PI)*0.1*(sin(t*50*PI)+6)

B
x=0.1*(sin(t*100*PI))
y=sin(t*2*PI)*0.1*(sin(t*50*PI)+6)
z=cos(t*2*PI)*0.1*(sin(t*50*PI)+6)

C
x=0.1*(sin(t*100*PI))+t
y=sin(t*2*PI)*0.1*(sin(t*50*PI)+6)
z=cos(t*2*PI)*0.1*(sin(t*50*PI)+6)