equivalent for the paraboloid

ParaboloidEquivalent


Image Sources
1. Sir Mortimer Wheeler’s 1930s archaeological dig at Maiden Castle via “THE ORIGINS AND GROWTH OF EUROPEAN PREHISTORY,” what-when-how, accessed 18th May 02016, http://what-when-how.com/ancient-europe/the-origins-and-growth-of-european-prehistory-discovering-barbarian-europe
2. Hyperbolic paraboloid via “Hyperbolic Paraboloid Quadric,” Wikipedia, 18th May 02016, https://upload.wikimedia.org/wikipedia/commons/8/87/Hyperbolic_Paraboloid_Quadric.png