An intrinsic formula for the cross ratio in spherical and hyperbolic geometries/
Foote, Robert L.
An intrinsic formula for the cross ratio in spherical and hyperbolic geometries/ Robert L. Foote and Xidian Sun. - Washington D. C.: Mathematical Association of America, ©Jul 2012-Sept 2015. - v43 n3, pages 182--188: Illustrations; 25 cm.
0746-8342
Geometry.
DPer 510.5 C697 Jan 2012-Sept 2015 v. 43 & 46, n. 1-4
An intrinsic formula for the cross ratio in spherical and hyperbolic geometries/ Robert L. Foote and Xidian Sun. - Washington D. C.: Mathematical Association of America, ©Jul 2012-Sept 2015. - v43 n3, pages 182--188: Illustrations; 25 cm.
0746-8342
Geometry.
DPer 510.5 C697 Jan 2012-Sept 2015 v. 43 & 46, n. 1-4