This article focus to Define and Discuss on Partial Integration. This article briefly discuss on Partial Integration in mathematical point of view. Suppose it is known that a given function ƒ(x) may be the derivative of some purpose ƒ(x); how is ƒ( x) observed? The answer, of training course, is to integrate ƒ(x). Now think about a related question: Suppose it is known that a given function ƒ(x, y) is the partial derivative regarding x of some purpose F(x, y); exactly how is F(x, y) observed? The answer is in order to integrate ƒ( x, y) regarding x, a process make reference to as partial integration.