Calculus Made Easy is designed to help you understand Calculus, having your own Maths Tutor when and where you need it. This app covers the following topics: * Definition of Function * First Principles for Differentiation * The Gradient of a Tangent * Rules for Differentiation * Function of a function rule * Product Rule * Quotient Rule * The derivatives of the function of Trigonometry. “iTeachers” aim to provide easy to understand lessons using new age technology, taught the old fashioned way. With our International content, easy to understand, fast-paced lessons. You will soon be top of the class.