中文说明： 对HARQ系统的吞吐量分析，通过matlab代码，该函数用来计算任意函数的一阶偏导数(数值方法),人脸识别中的光照处理方法，matlab编写的元胞自动机，有详细的注释。
English Description：
Analysis of HARQ system throughput by matlab code, the function used to calculate any function of the first order partial derivative (numerical method), face recognition in the light shining processing method, matlab cellular automata, detailed notes.