اذا كانت الزاويتان متكاملتان فإنهما متجاورتان على مستقيم واحد. دائرة

Courant and Robbins 1996, p	See in particular the bottom of p
"Inversion in a Circle" and "Inversion of Lines and Circles	"The History of the Solution of the Cubic Equation"

دائرة

Alsina, Claudi and Nelsen, Roger, Icons of Mathematics.

دائرة: Berlin, New York: DE GRUYTER
دائرة: The Secrets of Triangles, Prometheus Books, 2012
دائرة: "On the remainder term in the Madhava—Leibniz's series"

The Associated Harmonic Quadrilateral, Paris Pamfilos, Forum Geometricorum, Volume 14 2014 15—29	Science in the Ancient World: An Encyclopedia
Dragutin Svrtan and Darko Veljan, "Non-Euclidean versions of some classical triangle inequalities", Forum Geometricorum 12 2012 , 197—209	Novi Commentarii academiae scientarum imperialis Petropolitanae

دائرة

Geometry revisited, volume 19 ofNew MathematicalLibrary.

16

دائرة: "The History of the Solution of the Cubic Equation", Mathematics News Letter 5 4 , p
دائرة: Verlag Harri German, 5th edition, Thun and Frankfurt 2001, p
دائرة: in modern notation, with introductory chapters