👉 In mathematics, differentiation is a process of finding the derivative of a function. It is used to study how the value of a function changes as its input (or variables) change. The derivative of a function at a point represents the rate of change of that function with respect to the variable in question. The derivative of a function f(x) can be defined as: f'(x) = lim h->0 [f(x+h)-f(x)] / h where f'(x) is