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Blasius Equation for Boundary layer theory problems. For calculating the boundary layer thickness and the velocity profile in a free stream in a pipe.

详细介绍了编码原理的基础知识，是编程的入门级必备教材(Details the basics of coding theory, is an essential textbook entry-level programming)

详细介绍了永磁同步电机的控制策略和控制算法。采用的是自抗扰控制算法。(The control strategy and control algorithm of permanent magnet synchronous motor (PMSM) are introduced in detail. The auto disturbance rejection control algorithm is used.)

混沌图像加密，不错的界面程序，可以添加图片，非常实用(Chaotic image encryption, good interface program, you can add pictures, very practical)

高阶谱分析，很实用，能帮助分析非平稳信号(Higher order spectral analysis, it is useful to help analyze non-stationary signals)

巴特勒夫和切比雪夫滤波器的具体实现方法，应用MATLAB的具体实现(Batelefu and Chebyshev filters of specific implementations, the application of the concrete realization of MATLAB)

文件夹LSB中是空域LSB算法程序，文件夹COX中是Cox算法主要程序，文件夹DCT中是频域加在中频的算法的程序。 步骤：把LSB，COX，DCT三个文件夹考在MATLAB目录下； 运行lsb_embed,programme,dct2_embed_mod即可。其中PSNR.m是计算峰值信噪比程序；attact.m & robust.m是攻击程序。(Content: folder LSB of spatial LSB algorithm program, folder COX Cox algorithm is the main program folder DCT frequency domain is added to the IF algorithm program. Steps: the LSB COX DCT three files folder test in the MATLAB directory run lsb_embed program, dct2_embed_mod can. The which PSNR.m calculate the peak signal to noise ratio procedures attact.m & robust.m exploit.)

L-BFGS有限内存BFGS法,用于求解大规模无约束最优化问题(L-BFGS method for large scale unconstrained optimization)

汽车行驶工况识别S函数的M文件，根据车速和加速度判断汽车当前行驶的工况。(drive cycle identify)

用平面波展开法计算二维光子晶体带隙的程序(With the plane wave expansion method for calculation of 2-d photonic crystal program)