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u,v=var('u,v'); T1=Spherical('radius',['azimuth','inclination'])
T2=SphericalElevation('radius',['azimuth','elevation'])
p1=plot3d(v/6+cos(5*u),(u,0,2*pi),(v,0,2*pi),color='crimson',
opacity=.4,transformation=T1,frame=False,
plot_points=(50,50),mesh=True);
p2=plot3d(v/6+cos(5*u),(u,0,2*pi),(v,0,2*pi),color='green',
opacity=.3,transformation=T2,frame=False,
plot_points=(30,30),mesh=True);
(p1+p2).show()
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