In mathematics, Jordan's inequality, named after Camille Jordan, states that
It can be proven through the geometry of circles (see drawing).Feng Yuefeng, Proof without words: Jordan`s inequality, Mathematics Magazine, volume 69, no. 2, 1996, p. 126
Notes
Further reading Serge Colombo: Holomorphic Functions of One Variable. Taylor & Francis 1983, , p. 167-168 (online copy) Da-Wei Niu, Jian Cao, Feng Qi: Generealizations of Jordan's Inequality and Concerned Relations. U.P.B. Sci. Bull., Series A, Volume 72, Issue 3, 2010, Feng Qi: Jordan's Inequality: Refinements, Generealizations, Applications and related Problems . RGMIA Res Rep Coll (2006), Volume: 9, Issue: 3, Pages: 243–259 Meng-Kuang Kuo: Refinements of Jordan's inequality. Journal of Inequalities and Applications 2011, 2011:130, doi:10.1186/1029-242X-2011-130
External links Jordan's inequality at the Proof Wiki Jordan's and Kober's inequalities at cut-the-knot.org