中文说明： 该函数用来计算任意函数的一阶偏导数(数值方法),GPS和INS组合导航程序，用蒙特卡洛模拟的方法计算美式期权的价格以及基本描述,毕业设计有用，关于小波的matlab复合分析，基于K均值的PSO聚类算法。
English Description：
This function is used to calculate the first order partial derivatives of a function (method), GPS and INS navigation procedures, using Monte Carlo simulation method to calculate the price of American options and basic description of graduation design useful compound on MATLAB Wavelet analysis based on k-means clustering algorithm of PSO.