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forster特征点检测的matlab实现(forster feature point detection in matlab implementation)

混沌吸引子，有logistic,有lonez等(Chaotic attractor, there are logistic, etc. have lonez)

FDTD仿真喇叭天线，能观察得到其电场在自由空间随时间的分布情况。(FDTD method is a time domain analysis.Here we first we design a wave-guide and there after we just increase its broad side.Our aim is to this simulation is plotting its electric field response with time and how will it response in outside free space. Here we just take 170 time steps one who can interested in antenna designing they can also plot the radiation pattern of this HORN antenna.Just take the field in the outside the mouth of HORN antenna and there do the simple formula to near filed far field transfer and measure it at your band of antenna.Best of LUCK all of you.)

this file is a source code for character recognition with Hebb rule( Neural network)

主要讲解了matlab的基本语法，ppt版本。(Mainly on the basic syntax matlab, ppt version.)

电力系统 重合闸建模，能很好的对分布式电源的重合闸情况进行模拟(Reclosing power system modeling, can be a good situation for reclosing simulation of distributed power)

jacobi雅克比迭代法求解线性方程组，容易计算(Solving Linear Equations by Jacobian Matrix)

改进的粒子群算法，有更好的性能，提高了算法的搜索能力(Improved particle swarm optimization, better performance, improved search ability of the algorithm)

基于Mesri蠕变模型的桥梁桩基工后沉降计算程序(Calculation program for post-construction settlement of bridge pile foundation based on Mesri creep model)

Jacobi矩阵一般是坐标变换时用的——这个坐标系的坐标依次对那个坐标系的坐标求偏导数即得Jacobi矩阵。积分时从直角坐标变到球坐标、极坐标肯定要在积分号里乘上Jacobi矩阵的行列式。 若其特征值全为正，则此Jacobi矩阵正定，即它的任何二次型都大于零。并且如果是对称Jacobi矩阵，还可以实相合于一个单位阵。是比较强的条件。矩阵A的特征值是这个关于x的方程的所有根 det(A-xI)=0(Jacobi)