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PARTIAL
MATLAB解偏微分方程,是我们常用的数学工具(MATLAB solution of partial differential equations, we used a mathematical tool)
- 2009-05-15 21:02:49下载
- 积分:1
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eetop.cn_Simulink
simulink简明教程,初步了解simulink的使用方式(simulink simple tutorial a preliminary understanding of the usage simulink)
- 2010-01-14 13:16:41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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sins
sins+dvl+gps组合导航matlab程序,对于学习导航有一定帮助。(sins+dvl+gps egrated navigation matlab program, it is helpful for learning navigation)
- 2021-03-25 17:19:14下载
- 积分:1
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匈牙利算法m
此程序可以简单地解决0-1指派问题,可以分别求解目标函数最大值或最小值问题(This program can simply solve the 0-1 assignment problem, and can respectively solve the maximum or minimum of the objective function)
- 2017-08-22 10:10:25下载
- 积分:1
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DRAW
这是一个用鼠标划光滑曲线的函数,利用matlab编写(This is a smooth curve with the mouse draw a function of the preparation of the use of matlab)
- 2009-03-06 18:26:33下载
- 积分:1
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47651483ffffF1
智能天线来波方向估计算法 music 算法的估计(Smart Antenna DOA estimation algorithm music algorithm estimates)
- 2008-05-21 15:01:50下载
- 积分:1
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xindaorongliang
介绍了基于MATLAB 的信道编码,主要包括实验操作界面制作以及循环码和卷积码编译码。(Introduced the MATLAB-based channel coding, including experimental production, and user interface code and convolution code decoding cycle.)
- 2010-05-13 21:16:48下载
- 积分:1
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IEEE_UWB_recommend_matlab-simulation
该压缩包包括两个m文件,一个为IEEE推荐的UWB信道模型的matlab仿真程序,另一个为对应的RMS时延扩展计算,并附带了一个文档文件作说明。(The archive includes two m files, one for the IEEE UWB channel model recommended by the matlab simulation program, and the other for the corresponding calculation of RMS delay spread, and comes with a document file for instructions.)
- 2010-05-19 20:45:25下载
- 积分:1
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vc++_Library
Visual C Project Case Navigation source code ,Visual C++,source in ebook.(Visual C source Navigation Project co Case de, Visual C source in ebook.)
- 2006-12-04 02:20:48下载
- 积分:1