//Mobius.bvr\nmob=parametricSurface\nmob.setMinMax=t,0,6.29\nmob.setMinMax=s,-1,1\nmob.setEquation=x,((3+s*cos(t/2))*cos(t))\nmob.setEquation=y,((3+s*cos(t/2))*sin(t))\nmob.setEquation=z,(s*sin(t/2))\nmob.setSegmentCount=40\nmob.spawn\n\nT1=parametricCurve\nT1.setMinMax=t,0,13\nT1.setEquation=x,(3*cos(t) - 3/5*sin(t/2)*cos(t) )\nT1.setEquation=y,(3*sin(t) -3/5*sin(t/2)*sin(t))\nT1.setEquation=z,(0.2*cos(-t/2))\nT1.setSegmentCount = 100\nT1.color=green\nT1.spawn