In calculus, the product rule of derivatives is a method of finding the derivative of a function that is the multiplication of two other functions for which derivatives exist. The product rule in integration follows from it. The rule itself is a direct consequence of differentiation.
The Product Rule of Derivatives applies to multiply more than two functions. The above Calculator computes a derivative of a given function with respect to a variable x using analytical differentiation. Free online calculator that allows you to dynamically calculate the differential equation.