1.
x=sin(u)*2
y=cos(u)*2
z=cos(u)*3/2
0<=u<=2*pi
ritacija oko y ose
2.
x=sin(u)/2*3 x=cos(v)/3
y=cos(u) y=sin(v)^2
z=cos(u)/3 z=v
0<=u<=2*pi 0<=v<=2*pi
