# Thread: how to define Ostrowski type inequalities?

1. ## how to define Ostrowski type inequalities?

Ostrowski has defined a inequalities which name is Ostrowski type inequalities. it can elaboreate as follow:

Maybe this theory is defined by 1930s,I can't find any material regarding define the theory. could you tell me how to define it or have any material about it ?any your kind help will be most apprecieted.

Thank you again!