Take a

circle K and a plane P, which is

perpendicular to the

plane that K lies on.

Now, take a second circle C with the same radius as K. Move C around, keeping its center on circle C and keeping it parallel to plane P. The surface sweeped out is a quartic surface called a Bohemian Dome. The following parametric equations define a Bohemian Dome:

x = a cos u

y = b cos v + a sin u

z = c sin v

where u, v ∈ [0, 2π).