数学图形(2.7)sphere sine wave

#http://www.mathcurve.com/courbes3d/couronnetangentoidale/couronnetangentoidale.shtml
vertices = 12000 t = from 0 to (40*PI) a = 10 n = rand2(0.5, 10) x = a*sin(n*t)*cos(t) y = a*sin(n*t)*sin(t) z = a*cos(n*t)

#http://www.mathcurve.com/courbes3d/clelie/clelie.shtml
vertices = 12000 t = from 0 to (80*PI) a = 10 n = rand2(0.1, 10) x = a*cos(n*t)*cos(t) y = a*cos(n*t)*sin(t) z = a*sin(n*t)