DEVDynamicsModel

说明：  用于海洋绘图和密度 温度盐度的计算，绘图可以调用函数(For marine mapping and calculation of density temperature and salinity)

四元数双曲空间的一些计算函数，主要包括求四元数的逆，相乘运算等(Some function for the quaternionic hyperbolic space, including the inverse and the product ect.)

说明：  本文提出了一种基于混沌加密的DCT域二值图像数字水印算法.该算法首先利用混沌序列将含有版权信息的有意义二值图像水印进行加密,然后利用人眼视觉系统(HVS)的特性将原始载体图像进行块分类,最后将不同强度的水印分量嵌入到不同类的图像块DCT中频系数中去.利用混沌序列对水印进行加密,使水印本身具有安全性,对数字作品进行双重保障.通过高斯噪声,椒盐噪声以及JPEG压缩和剪切等攻击试验,表明了该算法具有较好的鲁棒性.(Encryption in DCT domain is proposed. Firstly, the meaningful binary image watermark containing copyright information is encrypted by using chaotic sequence, and then the original image is classified by using the characteristics of human visual system (HVS), Finally, the watermark components with different intensities are embedded into the DCT intermediate frequency coefficients of different types of image blocks. Chaotic sequences are used to encrypt the watermark, so that the watermark itself has security and double protection for digital works. Experiments on Gaussian noise, salt and pepper noise, JPEG compression and clipping show that the algorithm has good robustness)

Plots a polar figure in dB

matlab编写的FVCOM的前处理和后处理源程序，好用(FVCOM pre-processing and post-processing source with Matlab)

time series 3d embadding

matlab带噪声周期信号的自相关运算代码仿真有图(autocorrelation matlab periodic signal with noise)

二维时域有限差分法程序，用于电磁场环境下的功能仿真。(Two-dimensional FDTD program，Electromagnetic environment for functional simulation)

说明：  基于Graph Cut的一种分割方法，比较著名的论文。(Graph Cut based on a segmentation method to compare the famous paper.)

对于matlab编程的一些风格的指南，感觉还是比较重要，特别对于初学者，分享一下啦(For some matlab programming style guide, I feel it is quite important, especially for beginners, to share it)