The inversion of a horn torus. If the inversion center lies on the torus, then the horn cyclide degenerates to a parabolic horn cyclide.
Horn Cyclide
See also
Cyclide, Horn Torus, Inversion, Parabolic Cyclide, Ring Cyclide, Spindle Cyclide, TorusExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Horn Cyclide." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/HornCyclide.html