Convexity analysis for rational quadratic interpolation function
DENG Si-qing1,FANG Kui2,3,XIE Jin4
1.Department of Mathematics,Xiangnan University,Chenzhou,Hunan 423000,China 2.School of Information Science and Technology,Hunan Agricultural University,Changsha 410128,China 3.School of Mathematics and Computer,Hunan Normal University,Changsha 410081,China 4.Department of Mathematics and Physics,Hefei University,Hefei 230601,China