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game
扫雷 mine sweeping
方向键可以改变当前位置,按"="键或者"end"键相当于windows
下的双击作用,按空格键标记雷的位置。(A mine sweeping game by matlab code.)
- 2009-11-14 00:46:11下载
- 积分:1
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zhouchengguzhangzhenduan
分形学习进行轴承故障诊断及各个震动数据的数据降维的方法(Fractal study conducted bearing fault diagnosis and the various vibration data dimensionality reduction method)
- 2020-11-26 10:29:31下载
- 积分:1
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MSER_Vedaldi
MSER code from Vedaldi
- 2011-01-13 02:56:14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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DS_SS
It will ask for input the bit stream then generate pseudorandom bit sequence, finally give output as direct sequence spread spectrum
- 2011-05-13 15:25:58下载
- 积分:1
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genguijitu
使用matlab绘制根轨迹图实例,已经测试可直接在matlab中打开并运行。(Using matlab draw root locus instance, has been tested directly in matlab open and run.)
- 2013-10-29 20:48:07下载
- 积分:1
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yaw
用于计算船舶动力定位艏向角调整中,在风力作用下推进器推力的大小(DP control for yaw)
- 2021-04-16 16:18:53下载
- 积分:1
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fft_accumulation_method
关于循环谱的FAM算法,用于快速计算循环谱(FAM)
- 2010-05-10 16:22:02下载
- 积分:1
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quanzhanyishujuduru
利用Matlab读入全站仪的数据,并进行简单的数据处理(failed to translate)
- 2013-05-06 15:15:51下载
- 积分:1
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Matlab
HHTspe HHT谱计算程序,不是rilling版本,用改进的Hilbert变换(HHTspe HHT spectrum calculation program, not rilling version, using a modified Hilbert transform)
- 2010-11-11 16:23:28下载
- 积分:1