Putting the cylinder, ellipsoid, and space curve on the same plot

> p1:=plot3d([x,x^2,z],x=-1.5..1.5,z=-0.5..2.5):

> p2:=implicitplot3d(x^2+4*y^2+4*z^2=16,x=-4..4,y=-2..2,z=0..2):

> p3:=spacecurve(intcurve,t=-1.37..1.37,thickness=3,color=red):

> display({p1,p2,p3},axes=frame,labels=['x','y','z'],orientation=[60,55]);

Beautiful!

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