%0 Journal Article %A Jiang, Wei Dong %A Yun, Hua %T Sharpening of Jordan's inequality and its applications. %J JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only] %D 2006 %V 7 %N 3 %I mathdoc %U https://geodesic-test.mathdoc.fr/item/JIPAM_2006__7_3_116853/ %G en %F JIPAM_2006__7_3_116853