snowflake

HERE ITS A CODE FOR CONNECTED COMPONENT OF ANY IMAGE IN MATLAB

一、椭圆型偏微分方程 1. Helmholtz方程 及 特例（Possion方程， Laplace方程）； Helmholtz.m possion 2. 满足牛顿边值条件的Helmholtz方程；Helmholtz_Newton.m 二、抛物线型偏微分方程 1. 显式前向欧拉法 EF_Euler.m 2. 隐式后向欧拉法 IB_Euler.m 3. Grank-Nicholson法 Grank_Nicholson.m 4. 二维热传导抛物线方程 TDE.m 三、双曲线型偏微分方程 1. 显式中心差分法（一维波动方程） ECD_Wave.m 2. 显式中心差分法（二维波动方程） Wave2.m 四、有限元法 二维偏微分法方程（拉普拉斯方程） fem_basis_ftn.m Show_Basis.m fem_coef 五、使用GUI形式的偏微分方程求解工具求解偏微分方程（PDETOOL） 来自《精通Matlab科学计算》第三版(Numerical Methods for PDE)

入侵性杂草算法，连续型，多目标，多维函数优化。(invasive weed 0ptimization is a good optimal tools for any continual problem. IWO has been successfully applied to several electromagnetic optimization problems)

采用RS和1/2码率卷积码的级联码，实现高可靠性数字传输(Using RS and 1/2 rate convolutional code concatenated code, high reliability digital transmission)

该算法构造了一个列重为4的校验矩阵，并检验了是否存在周长为8的环(The algorithm constructs a series of important check matrix of 4 and test whether there was a perimeter ring of 8 )

Comparación de varias aproximaciones

It is a measuring hearing sensitivity in a GUI file of Matlab, this permit save 5 seconds of sound and get the modulate signal and spectrum, also have a graphic interface with Simulink...

我做的关于数字信号处理的matlab实验。主要是卷积运算的实现和滤波器设计。(I have done on the digital signal processing matlab experiment. Is mainly the realization of convolution and filter design.)

说明：  文件包含PID多种算法，相当齐全，并已通过系统仿真测试(PID file contains a variety of algorithms, is quite comprehensive, and has been tested by simulation)

实现数值分析中单纯形法改进方法的matlab代码，即改进单纯形法算法，能够实现大型稀疏矩阵的迭代，这是3/3..(Numerical analysis to achieve improved method simplex method matlab code that modified simplex method algorithm, to achieve large sparse matrix iteration, which is 3/3 ..)