wave_optics

盲源分离算法中，另一新的理论，非负矩阵分解（NMF）。数据包中有代码及GUI(Blind source separation algorithm, another new theory, non-negative matrix factorization (NMF). Packet has the code and GUI)

通过自动阈值选择方法实现图像二值化。初始阈值T是图像均值；T把图像直方图分成R1和R2两个区域；计算R1和R2均值u1和u2，选择u1和u2均值作新的阈值；重复以上步骤直到T值基本不变。(Automatic Threshold Selection；)

汉诺塔的实现程序，包括简单的实现代码，和动画演示代码(Hanoi' s implementation procedures, including simple implementation code, and animation demo code)

有限差分法的Matlab程序（椭圆型方程）(Finite difference method in Matlab (elliptic equations))

这是大学数字信号处理的时域采样定理验证实验程序(This is the University of digital signal processing time-domain sampling theorem verification test procedures)

It is much easier to spot patterns in your data when you can associate an image with each datapoint. thumbnailScatter.m overlays an image thumbnail over each datapoint to help with visualization. For example, if you perform a principal components analysis and would like to plot PC1 vs PC2, use thumbnailScatter.m to see what properties each PC controls. Run demo_scatterThumbnail.m to see how it works. Test data are provided for the demo.

these are codes for thermodynamics.

说明：  k-means聚类以及比较，对比比较经典的算法，读者可以自行修改等等(Clustering and comparison, comparison more classical algorithm, the reader can modify and so on)

FDTD with ABC boundary done by me

升余弦滤波器的matlab仿真程序，使用matlab2008编写(Raised cosine filter matlab simulation program, using matlab2008 write)