clock3

包括K-均值聚类算法的思想介绍，kmeans的MATLAB代码，c语言代码、c++代码。(Including the K-means clustering algorithm introduced the idea, kmeans of MATLAB code, c language code, c++ code.)

This model using to simulate flicker three phase with full transformer, load.

读取并存储nc文件，不同的文件里的参数可能不一样，按格式修改即可。(Read and store NC files, the parameters in different files may be different, and can be modified according to format.)

详细的介绍了matlab操作的技巧，适合初学者学习(Matlab operation described in detail the techniques, suitable for beginners to learn)

BPSK SNR vs BER graph simulation awgn channel

progarm for ur use

data to fit circle...............................................

数学建模MATLAB必备程序源代码.从matlab菜鸟，一路飙升~~~~后来参加比赛拿奖几乎全靠它了！！尤其是里面的国赛真题的源代码，值得研究~~对于学习数学建模的朋友们，有极大的帮助(MATLAB Mathematical modeling necessary source code matlab rookie, soared almost winning the prize ~ ~ ~ ~ later race depends on it! ! Especially inside the country Zhenti game' s source code, it is worth learning mathematical modeling study ~~ friends, a great help)

BP神经网络容易陷于局部极小值，PSO算法在无约束非线性函数优化方面性能优越，通常可以直接找寻到全局最优解，即使不能搜多到全局最优解，也距离全局最优点不远。当然，基本PSO算法陷入局部极值也是有的。对于这个缺点目前还没有找到比较有效、省市的解决方案。本案例实现利用PSO算法和BP算法共同训练神经网络，先将网络进行PSO算法训练，然后BP算法接着进行小范围精细搜索，PSO算法训练神经网络的本质就是将输出误差函数（即能量函数）看成目标函数，PSO对能量函数进行全局寻找最小值。(BP neural networks are prone to local minimum values. The PS algorithm has superior performance in the optimization of unconstrained nonlinear functions. It can usually find the global optimal solution directly. Even if it can not find more global optimal solutions, it is not far from the global best. Of course, there is also a local extreme of the basic PO algorithm. For this shortcoming, there is no more effective, provincial and municipal solution. This case realizes the use of the SO algorithm and the BP algorithm to train the neural network. First, the network is trained in the SO algorithm, and then the BP algorithm is followed by a small range of fine searches. The essence of the PO algorithm training neural network is to regard the output error function(ie, the energy function) as the objective function, and the PO seeks a global minimum value for the energy function.)

可以直接用的LSL算法程序，使用MATLAB编写(Can use the LSL algorithm, written using MATLAB)