Geodesic
A somewhat unexpected concavity
The Teaching of Mathematics, XVI (2013) no. 1, p. 18

Voir la notice de l'article provenant de la source eLibrary of Mathematical Institute of the Serbian Academy of Sciences and Arts

This classroom note considers the slightly counterintuitive concavity of a rational function.
Classification : 1AMS97I40 2ZDMI45
Keywords: rational function, concavity. 
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     author = {Aaron Melman},
     title = {A somewhat unexpected concavity},
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Aaron Melman. A somewhat unexpected concavity. The Teaching of Mathematics, XVI (2013) no. 1, p. 18 . http://geodesic.mathdoc.fr/item/TM2_2013_XVI_1_a3/