Belaïdi, Benharrat; El Farissi, Abdallah; Latreuch, Zinelaâbidine
(RGMIA Reseaech Report collection, 2009)
In this paper we give an estimate, from below and from above,
of the mean value of the function f : [a, b] → R such that f is continuous on
[a, b] and twice differentiable on (a, b).