eng Science and Education Publishing Turkish Journal of Analysis and Number Theory 2014-06-29 2 3 80 84 10.12691/tjant-2-3-5 TJANT2014235 article On an Inequality of Ostrowski Type via Variant of Pompeiu's Mean Value Theorem Mehmet Zeki SARIKAYA sarikayamz@gmail.com 1 Hüseyin BUDAK 1 Department of Mathematics, Faculty of Science and Arts, Düzce University, Düzce, Turkey The main of this paper is to establish an Ostrowski type inequality for two variables functions by using a mean value theorem. http://pubs.sciepub.com/tjant/2/3/5/tjant-2-3-5.pdf Ostrowski inequality Pompeiu's mean value theorem