中文说明：到达过程是的泊松过程，该函数用来计算任意函数的一阶偏导数(数值方法),高斯白噪声的生成程序，可以实现模式识别领域的数据的分类及回归，最小二乘回归分析算法，包括AHP，因子分析，回归分析，聚类分析。
English Description：
Arrival process is a Poisson process, this function is used to calculate any function of the first order partial derivative (numerical method), the generation of Gaussian white noise process can realize pattern recognition in the field of data classification and regression and least squares regression analysis algorithm, including AHP, factor analysis, regression analysis and cluster analysis.