這篇論文當中，我們將建立Ostrowski型的不等式，主要是針對三個變數的函數。

In the present paper we will establish an inequality of Ostrowski’s type for mapping of three variables.

目錄
1.前言…………………………… 1
2.主要結果……………………… 2
參考文獻…………………………15

Contents
1.Introduction..............17
2.The Results...............18
References..................32

[1] N.S. BARNETT and S.S. DRAGOMIR, An Ostrowski type inequality for double integrals and applications for cubature formulae, RGMIA Research Report Collection,Vol.1, No.1, 1998.

[2] S.S. DRAGOMIR and S. WANG, A new inequality of Ostrowski's type in L₁ norm and applications to some special means and to some numerical quadrature rules,Tamkang J. of Math, 28(1997), 239-244.
        
[3] S.S. DRAGOMIR and S. WANG, An inequality of Ostrowski-Grüss' type and its applications to the estimation of error bounds for some special means and for some numerical quadrature rules, Computers Math. Applic., 33(1997), 15-20.
        
[4] S.S. DRAGOMIR and S. WANG, Applications of Ostrowski's inequality to the estimation of error bounds for some special means and some numerical quadrature rules, Appl. Lett., 11(1998), 105-109.
       
[5] S.S. DRAGOMIR and S. WANG, A new inequality of Ostrowski's type in L_{p} norm and applications to some special means and to some numerical quadrature rules, submitted for publications.
        
[6] D.S. MITRINOVIĆ, J.E. PECARIĆ and A.M. FINK, Inequalities Involving Functions and Their Integrals and Derivatives, Kluwer Academic Publisher, Dordrecht, 1994.
       
[7] A.M. Ostrowski,Über die Absolutabweichung einer differentiebaren Funktion von ihren Integralmittelwert, Comment. Math. Helv., 10(1938), 226-227.