chap2

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)

When using objectness in your application, it is important to take into account the score of a window returned by this software

改进的蝙蝠算法的MATLAB程序，内含测试函数，具有很高的测试精度(Improved algorithm bat)

用Matlab计算，钢的反对称模式lamb频散曲线。(Calculated using Matlab, the symmetric mode lamb steel dispersion curves.)

MIMO雷达阵列方面的到达角式的最新文献，大家可以看看(Angle of Arrival Estimation using MIMO Array Antenna)

MATLAB GUI for Agilent N8241A(MATLAB GUI for Agilent N8241A)

EM算法，是一种无监督的聚类算法，可以实现对数据的处理，对不同数据进行聚类，生成类内相似度最大(EM algorithm is an unsupervised clustering algorithm, the data processing can be achieved on different data clustering, to generate the maximum within-class similarity)

This example demonstrates how to use the backend service in Google-App-Engine. 1. Change name of application in app.yml and firstmodule.yaml to the name of you application 2. Upload the files 3. Open the main page

利用随机Hough变换提取二值图像中的直线(Random Hough transform to extract straight lines in binary image)

开关磁阻电机的角度位置控制simulink模型(angular position control for SRD)