[v[v// Parametric surface\nsurf=parametricSurface\nsurf.setMinMax=s,-5,5\nsurf.setMinMax=t,-5,5\nsurf.setEquation=x,(s)\nsurf.setEquation=y,(t)\nsurf.setEquation=z,(1+s+t)\nsurf.setSegmentCount=20\nsurf.color=green\nsurf.spawn\n\n[v// Parametric surface \ncyl=parametricSurface\ncyl.setMinMax=s,-5,5\ncyl.setMinMax=t,-5,5\ncyl.setEquation=x,(s)\ncyl.setEquation=y,(t)\ncyl.setEquation=z,(1-s)\ncyl.setSegmentCount=20\ncyl.color=red\ncyl.spawn\n\n[v// Parametric curve\nhelix=parametricCurve\nhelix.setMinMax=t,-1.5,3.25\nhelix.setEquation=x,(-t+1)\nhelix.setEquation=y,(2*t-2)\nhelix.setEquation=z,(t)\nhelix.setSegmentCount=70\nhelix.setThickness=0.2\nhelix.color=red\nhelix.spawn\n\nSurfaces.bvr