//SphereAndTwoCircle.bvr\n\n//Parametric surface\nt=parametricSurface\nt.setMinMax=s,0,6.5\nt.setMinMax=t,0,3.25\nt.setEquation=x,(3*sin(s)*cos(t))\nt.setEquation=y,(3*sin(s)*sin(t))\nt.setEquation=z,(3*cos(s))\nt.setSegmentCount=30 \nt.spawn\n\n//Parametric curve\nbigC=parametricCurve\nbigC.setMinMax=t,0,6.5\nbigC.setEquation=x,(3*cos(t))\nbigC.setEquation=y,(3*sin(t))\nbigC.setSegmentCount=70\nbigC.setThickness=0.2\nbigC.color=blue\nbigC.spawn\n\n//Parametric curve\nsC=parametricCurve\nsC.setMinMax=t,0,6.5\nsC.setEquation=x,(sqrt(5)*sin(t))\nsC.setEquation=y,(2)\nsC.setEquation=z,(sqrt(5)*cos(t))\nsC.setSegmentCount=70\nsC.setThickness=0.2\nsC.color=red\nsC.spawn\n\n//Text\ntxt=text\ntxt.text=feng.796\ntxt.color=green\ntxt.position=0,0,4\n