是个用于测试化学中晶体结构的软件，我不清楚用什么语言编写的，因为我对这些不熟悉，请原谅我不能描述清楚-Was used to test the chemical in the crystal structure of the software, I do not know what language, because I am not familiar with these, please forgive me I can not describe clearly

用平面波展开法计算一维光子晶体的能带结构，程序语言非常精炼-Plane wave expansion calculation of one-dimensional photonic crystal band structure, programming language is very refined