该程序设计简单，计算结果准确。能很好的利用该程序给出二维光子晶体的禁带结构-the design process simple and accurate. Can be a very good use of the program is two-dimensional photonic crystal structure of the forbidden zone

非负矩阵分解的人脸识别NMF 可正常运行 算法源码-Non-negative matrix factorization NMF for face recognition algorithms can be the normal operation of source