
One of the three Standard Tori given by the parametric equations
(1)  
(2)  
(3) 
See also Cyclide, Horn Cyclide, Ring Torus, Spindle Torus, Standard Tori, Torus
References
Gray, A. ``Tori.'' §11.4 in Modern Differential Geometry of Curves and Surfaces. Boca Raton, FL: CRC Press, pp. 218220, 1993.
Pinkall, U. ``Cyclides of Dupin.'' §3.3 in Mathematical Models from the Collections of Universities and Museums (Ed. G. Fischer). Braunschweig, Germany: Vieweg, pp. 2830, 1986.