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Optimization_Newton
设r是f(x) = 0的根,选取x0作为r初始近似值,过点(x0,f(x0))做曲线y = f(x)的切线L,L的方程为y = f(x0)+f (x0)(x-x0),求出L与x轴交点的横坐标 x1 = x0-f(x0)/f (x0),称x1为r的一次近似值。过点(x1,f(x1))做曲线y = f(x)的切线,并求该切线与x轴交点的横坐标 x2 = x1-f(x1)/f (x1),称x2为r的二次近似值。重复以上过程,得r的近似值序列,其中x(n+1)=x(n)-f(x(n))/f (x(n)),称为r的n+1次近似值(Let r is f (x) = 0 root, select the initial approximation x0 as the r, over point (x0, f (x0)) to do the curve y = f (x) the tangent L, L the equation y = f ( x0)+ f ' (x0) (x-x0), find the intersection of L and the x-axis of abscissa x1 = x0-f (x0)/f' (x0), x1 is called an approximation r. Through points (x1, f (x1)) to do the curve y = f (x) the tangent, and find the intersection of the tangent with the x-axis of abscissa x2 = x1-f (x1)/f ' (x1), x2 is called r the second approximation. Repeat the process, get an approximation of the sequence r, where x (n+1) = x (n)-f (x (n))/f ' (x (n)), as an approximation of r n+1 times)
- 2011-06-21 21:13:09下载
- 积分:1
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CR-genetic
CR GENETIC ALGORITHM
- 2014-08-28 16:56:22下载
- 积分:1
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MATLAB--applications-25-Case-Studies
《MATLAB高效编程技巧与应用:25个案例分析》,很好的matlab学习资料("MATLAB efficient programming techniques and applications: 25 Case Studies" good matlab learning materials)
- 2014-04-24 20:29:40下载
- 积分:1
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plotResults
plots result of simulation in matlab
- 2015-03-18 16:02:08下载
- 积分:1
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particle-filter
粒子滤波算法;粒子滤波算法源于Montecarlo的思想,即以某事件出现的频率来指代该事件的概率。因此在滤波过程中,需要用到概率如P(x)的地方,一概对变量x采样,以大量采样的分布近似来表示P(x)。因此,采用此一思想,在滤波过程中粒子滤波可以处理任意形式的概率,而不像Kalman滤波只能处理高斯分布的概率问题。他的一大优势也在于此。(these codes are particle filter resources codes which solve non-linear estimation problems.I wish that it is helpful to some people.I am glad to share it with others.
)
- 2011-02-14 18:19:28下载
- 积分:1
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Interference-of-two-beams
两束相干光的干涉强度和干涉条纹,干涉条纹用图像指令image绘制(Interference of two beams of coherent light intensity and interference fringes)
- 2013-09-24 21:23:22下载
- 积分:1
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wavelet--woven-fabric
采用小波提取布料图像的纹理,提取出经纬纱的纹理,效果还好。演示用吧(using wavelet to extract Woven Fabrics feature, it alse can automatic analysis techniques to identify the fabric density)
- 2012-05-31 22:59:07下载
- 积分:1
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Fuzzy-PID
程序首先是编写2个输入,1个输出的隶属度函数;接下来的是模糊规则,一共49条;然后用解模糊函数得出控制量U,解模糊用到得规则是取隶属度最大的那个数即MOM算法。(The program first is to write two inputs, one output membership function next is fuzzy rules, a total of 49 then come to control the amount of ambiguity function U, ambiguity was used to take the membership rules are the biggest that number that MOM algorithms.)
- 2014-08-07 21:39:54下载
- 积分:1
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TD-LTE
LTE 4G 王映民的权威著作 详细介绍了4G中的各种技术(LTE 4G Wang Yingmin authoritative book details the various technologies in 4G)
- 2014-10-09 10:20:24下载
- 积分:1
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matlab--caiyangdingli
采样定理,几个验证matlab采样定理的小程序,能够说明什么时候采样频率可以捕捉更好的波形(Sampling theorem, verification matlab sampling theorem applet can say when the sampling frequency can better capture the waveform)
- 2013-05-02 01:56:57下载
- 积分:1