Major purpose of this article is to Define and Discuss on Differentiation. Here explain Differentiation in mathematical point of view. This article explain Differentiation with mathematical examples. Suppose, Given a function y = ƒ( x), their derivative, denoted by y′ or even dy/ dx, gives the actual instantaneous rate of change of ƒ with repect for you to x. Geometrically, this increases the slope of the curve (that is, the slope with the tangent line to the actual curve) y = ƒ( x). This article show it in Graph.