Abstract
This classroom note considers the slightly counterintuitive concavity of a rational function.
Keywords: rational function; concavity.
Pages: 18$-$21
Volume XVI , Issue 1 , 2013
Published by Društvo matematičara Srbije Kneza Mihaila 35/IV, P.O.B. 355, 11000 Belgrade, Serbia E-mail: drustvomatematicara(at)yahoo.com Fax: +381 11 3036 819 ISSN 2406-1077 (Online), ISSN 1451-4966 (Print)