1. derivative is a very important basic concept in postgraduate mathematics. In addition to understanding the concept of derivative, the outline of postgraduate entrance examination also requires skilled calculation of derivative of function.

2. Common derivative calculation problems are: derivative of compound function, derivative of inverse function, derivative of function in the form of parametric equation, calculation of higher derivative of function, calculation of first and second partial derivatives. Among them, with regard to the calculation of higher-order derivatives, some students have no way to solve problems because they have not mastered the correct calculation method.

The above is the analysis of several basic calculation methods of higher-order derivatives of functions in postgraduate mathematics for candidates' reference.