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Mobius Slider

c1=u/2
c2=v/2
c3=sin(c1)
c4=sin(v)
c5=cos(c1)
c6=sin(2v)
c7=2
c8=c7+c5*c4-c3*c6
Scroll(a,0,2π,0.1)
ParametricPlot3D(c8*cos(u),c8*sin(u),c3*c4+c5*c6,[u,0,2\pi-a,200],[v,0,2\pi,200])