文档中包含有牛顿迭代法算法原理解析，包括一般非线性方程和非线性方程组，其中附有一个非线性方程组的实际例子和相应matlab求解代码，例子的实验可以加深对算法的理解和运用。(The document contains the Newton iterative algorithm analysis, including general nonlinear equations and nonlinear equations group, which is attached to a practical example of nonlinear equations and the corresponding MATLAB s code)