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interact
this is matlab codes
- 2012-08-02 13:26:05下载
- 积分:1
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fulbridge_rectifiers
fullbridge rectifier
- 2014-10-27 18:53:03下载
- 积分:1
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hadamardSim
ofdm papr haramard with PTS
- 2018-03-31 03:30:47下载
- 积分:1
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Markov-processes
馬可夫鍊的MATLAB程式撰寫和過程
(Markov chains and processes the MATLAB programming)
- 2011-10-24 21:16:56下载
- 积分:1
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sound-graph2
WE NEED PART 2 CODE In MATLAB SOUND DECODEING
- 2013-10-07 19:04:29下载
- 积分:1
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cv_fenxi1
matlab 代码,主要用于计算一数据矩阵的标准差,方差,变异系数,话三维曲面图(matlab code, data matrix used to calculate a standard deviation, variance, coefficient of variation, then D surface chart)
- 2013-10-31 19:58:00下载
- 积分:1
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第七章
说明: 传感器阵列波束优化设计与应用书籍第7章的matlab程序(Chapter 7 matlab program of book Sensor array beam optimization design and application)
- 2020-12-05 12:09:23下载
- 积分:1
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BP_neural_network
说明: 可以使用BP神经网络对矩阵形式的数据进行训练,并且进行数据预测,代码注释详细(BP neural network can be used to train the data in matrix form, predict the data, and annotate the code in detail)
- 2020-01-28 10:34:08下载
- 积分:1
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MATLAB
一、 牛顿-拉夫逊法概要
首先对一般的牛顿-拉夫逊法作一简单说明。已知一个变量X的函数
(4-6)
解此方程式时,由适当的近似值X(0)出发,根据 (4-7)
反复进行计算,当X(n)满足适当的收敛判定条件时就是(4-6)式的根。这样的方法就是所谓的牛顿-拉夫逊法。
式(4-7)就是取第n次近似解X(n)在曲线 上的点 处的切线与X轴的交点作下一次X(n+1)值的方法。参考图4-2(a)。在这一方法中为了能收敛于真解,初值X(0)的选取及函数f(X)必须满足适当的条件,如图4-2(b)所示的那种情况就不能收敛或收敛到别的根上去。
这一方法还可以做下面的解释,设第n次迭代得到的解与真值之差,即 的误差为 时,则
(4-8)
把 在 附近对 用泰勒级数展开
(4-9)
上式略去 以下的项
(4-10)
的误差可近似由上式计算出来
图4-2
(4-11)
比较式(4-7)和(4-11),可以看出牛顿-拉夫逊法的修正量和 的误差的一次项相等。
用同样的方法考虑,给出对n个变量 (:Because of the importance and complexity of power system, better algorithm and programme language
is very important . An interior point method based on the perturbed Karush2Kuhn2Tucker (KKT) condition is pre2
sented in this paper , where the method and process for the optimal power flow is treated through the Matlab’s
symbolic math toolbox and Mfunction is also presented. Using the symbolic code , it can improve the adaptability
of the programme dramatically. The advantage is that , what we need to do is change the model expression. We
can make use of the symbolic programme to check our programme while we write the Mfunctions. Using the Mat2
lab , we find the optimal solutions and calculate quickly and efficiently. It has proposed the powerful and unique
functions of Matlab in the optimization and calculation for power system.
Key words :power system symbolic calculation optimal power flow interior point method)
- 2020-07-08 16:38:56下载
- 积分:1
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period2
自己编的周期图法谱估计,对初学者有所帮助,内还有一本书可供参考(own series of the Periodic Table spectral estimation, for beginners is helpful, there are still a book for reference)
- 2007-04-23 20:48:54下载
- 积分:1