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mathematica中的构造基本向量和矩阵构造方法，方便初学者学习(the method of the constitution of basic matrix and calculous in mathematica,so easy for the starting student)

介绍MATLAB M编程语言和Simulink混合应用。 非常适用下载要快啊(Introduction MATLAB M programming language and Simulink mixed application. Are ideally suited for download to快啊)

余弦波是渐变的，当ωt+φ的取值变化量很小时，Y的变化量也是很微小的。余弦波的这一特性保证了嵌入水印后相邻字符灰度值差别不大，人眼无法识别，从而保证了水印的不可见性和图像质量。(Cosine wave is gradual, and when ωt+ φ values variation is very small, Y amount of change is very small. Cosine waves This feature ensures that watermarked gray value of adjacent character is not very different, the human eye does not recognize, thus ensuring the invisibility of watermark and image quality.)

重要是实现通过瑞利信道的QPSK的仿真，同时给出了其误码率的仿真(Important thing is to achieve through the Rayleigh channel QPSK simulation, while its error rate is given simulation)

利用Matlab进行语音信号滤波和去噪，仅供参考(Using Matlab voice signal filtering and de-noising for reference purposes only)

基于matlab迭代学习控制的程序，结合simulink，用s函数编写(Matlab-based iterative learning control procedures, combined with simulink, written s function)

掌握和精通matlab word格式的书，matlab入门不错的参考资料(Master and master matlab word format, books, matlab a good reference for entry)

说明：  振动烈度计算的MATLAB算法，根据振动加速度信号的频域积分计算振动烈度(The MATLAB algorithm for calculating vibration intensity, vibration acceleration signals according to frequency domain integral calculation of vibration severity)

This model is very much useful in converting the normal three phase voltages to the corresponding alpha beta components

Split PML 3D FDTD open source