Based on the physical system of the analysis and research in Newton's method

Newton iteration method, also known as Newton tangent method, is a method for solving nonlinear equations. Its greatest advantage is that it has a square convergence around a single root of the equation f (x) = 0 , and the method can also be used to find the equation. Heavy roots, complex roots. The theoretical basis and some characteristics of the method are introduced by examples. The realization process of solving the model by using the cow pull method is given, and the root of a system of equations is calculated by MATLAB simulation to show that the method is feasible.