RadHist

DistMesh giving a singular FEM matrix?(Hi Anyone here with some experience of using DistMesh in finite element code? I m solving the scalar Helmoltz equation in an annular region in 2D: rho_1 < rho < rho_2 where rho_1 is the radius of a Perfect Electric Conducting cylinder and rho_2 is where the mesh is truncated using an Absorbing Boundary condition. Now, I ve written code to mesh the region myself (by dividing the region into annular rings and picking a fixed number of points on each ring) and I ve written another program which uses DistMesh to mesh the region. I get a nice solution using my own meshing code but the FEM matrix becomes singular when I use DistMesh. This is the DistMesh Code I used: Circle with hole rABC=1.5 rCyl=0.5 fdstring=sprintf( ddiff(dcircle(p,0,0, f),dcircle(p,0,0, f)) ,rABC,rCyl) fd=inline(fdstring, p ) box=[-2,-2 2,2] [p,N]=distmesh2d(fd,@huniform,0.04,box,[]) I tried changing box and the 0.04 value (initial edge length). But every time, the matrix becomes sin)

simulation with hybrod toolbox in matlab

利用Matlab程序，绘制磁力线，采用三维作图，做出了长方体状磁体的磁力线分布(Matlab program used to draw the magnetic field lines, using three-dimensional mapping, rectangular-shaped magnets made of the distribution of magnetic field lines)

将若干张a到k的扫描的手写字符图像进行分割，输入神经网络进行识别(will to a certain Zhang k scanning images of handwritten character segmentation, neural network recognition)

LSB实现图像水印的嵌入与提取。真彩色图像为载体也可以！(LSB implements image watermarking embedding and extraction. True color images can also be used as carriers!)

speech ceps pitch detection

一个matlab程序可以调入和应用3D Max (.3ds)和Autocad (.dxf)文件。能够利用OpenGL作显示并进行简单的操纵（旋转，平易，重叠等）(a Matlab procedures can be transferred and applied 3D Max (.3 ds) and Autocad (. dxf) documents. To use OpenGL for show and simple manipulation (rotate kind, overlap, etc.))

基值於,細菌演算法,優化出最佳PID計算值(Based on the value, bacteria algorithm to optimize the calculation of the optimal PID values)

system identification base least square error on step peridiction

This is a matlab script for PCM quantization