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mhx
MATLAB中利用龙哥库塔方法解微分方程（以铁磁学中LandauLifshitz方程为例）(Long Ge Kuta method using MATLAB, solving differential equations (in the ferromagnetic case study in the LandauLifshitz equation))
- 2011-01-28 19:20:20下载
- 积分：1
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New-Folder-(3)
this code shows the new filter application ........................................
- 2012-08-20 16:35:32下载
- 积分：1
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sixbobobobo
六脉波整流以及谐波抑制技术 iq ip 瞬时无功检测(Six pulse rectifier and harmonic suppression technology iq ip instantaneous reactive detection)
- 2013-06-03 12:55:22下载
- 积分：1
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Non-linear-function-fitting
非线性函数拟合——利用遗传算法来优化BP神经网络，利用神经网络开发包实现图形化的神经网络模拟，使得神经网络原理更直观，可用于教学，也可用于实际神经网络训练，内附详细帮助文件。(Non-linear function fitting- using genetic algorithms to optimize the BP neural network, neural network development package to implement graphical neural network simulation, neural network theory makes more intuitive, can be used for teaching, but also can be used for the actual neural network training, in with detailed help files.)
- 2011-11-10 12:44:15下载
- 积分：1
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li9_23
clear all
I=imread( lena.bmp )
figure imshow(I)
I2=imrotate(I,-4, bilinear ) 逆时针旋转4度
figure imshow(I2)
I3=fliplr(I) 垂直镜像
figure imshow(I3)
I4=imresize(I,0.5, bilinear ) 缩小为原图的1/2
figure imshow(I4)
A=double(I) 转换为double类型
计算7个不变矩
[nc,nr]=size(A)
[x,y]=meshgrid(1:nr,1:nc) 得到网格
x=x(:)
y=y(:)
A=A(:)
m.m00=sum(A)
if m.m00==0
m.m00=eps
end
m.m10=sum(x.*A)
m.m01=sum(y.*A)
计算均值
xmean=m.m10/m.m00
ymean=m.m01/m.m00
计算中心矩(li9_23.rar
cm.cm00=m.m00
cm.cm02=(sum((y-ymean).^2.*A))/(m.m00^2)
cm.cm03=(sum((y-ymean).^3.*A))/(m.m00^2.5)
cm.cm11=(sum((x-xmean).*(y-ymean).*A))/(m.m00^2)
cm.cm12=(sum((x-xmean).*(y-ymean).^2.*A))/(m.m00^2.5)
cm.cm20=(sum((x-xmean).^2.*A))/(m.m00^2)
cm.cm21=(sum((x-xmean).^2.*(y-ymean).*A))/(m.m00^2.5)
cm.cm30=(sum((x-xmean).^3.*A))/(m.m00^2.5)
im(1)=cm.cm20+cm.cm02
im(2)=(cm.cm20-cm.cm02)^2+4*cm.cm11^2
im(3)=(cm.cm30-3*cm.cm12)^2+(3*cm.cm21-cm.cm03)^2
im(4)=(cm.cm30+cm.cm12)^2+(cm.cm21+cm.cm03)^2
im(5)=(cm.cm30-3*cm.cm12)*(cm.cm30+cm.cm12)...
*((cm.cm30+cm.cm12)^2-3*(cm.cm21+cm.cm03)^2)...
+(3*cm.cm21-cm.cm03)*(cm.cm21+cm.cm03)...
+(3*(cm.cm30+cm.cm12)^2-(cm.cm21+cm.cm03)^2)
im(6)=(cm.cm20-cm.cm02)*((cm.cm30+cm.cm12)^2-(cm.cm21+cm.cm03)^2)...
+4*cm.cm11*(cm.cm30+cm.cm12)*(cm.cm21+cm.cm03)
im(7)=(3*cm.cm21-cm.cm03)*(cm.cm30+cm.cm12)...
*((cm.cm30+cm.cm12)^2-3*(cm.cm21+cm.cm03)^2)...
+(3*cm.cm12-cm.cm30)*(cm.cm21+cm.cm03)...
*()
- 2010-10-17 21:53:14下载
- 积分：1
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Optimization-experiments
学习用matlab求解最优化问题，提高matlab实际应用能力(Learn to use matlab to solve the optimization problem, the ability to improve the practical application of matlab)
- 2011-07-24 13:21:11下载
- 积分：1
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fuel-cell-simulink-simulation-model
电动汽车燃料电池simulink仿真模型，用于电动汽车或者混合动力汽车的仿真模型(Simulink simulation model of the electric vehicles fuel cells for electric vehicle or hybrid vehicle simulation model)
- 2012-07-03 10:18:48下载
- 积分：1
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matlab_Monte_Carlo
matlab源程序_用蒙特卡洛法实现对排队等待问题的计算机模拟，代码详细，并且有很直观的动画演示(matlab source _ queued for the computer simulation using Monte Carlo method, the code in detail, and very intuitive animation)
- 2012-07-06 09:38:38下载
- 积分：1
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IIR-programm
这是一个MATLAB的IIR滤波器的程序!(This is a program of IIR fliter!)
- 2009-06-07 22:32:57下载
- 积分：1
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matlab-huitu
Matlab绘图知识，各种命令的使用方法(matlab knowledge ,the usage of various orders)
- 2012-04-16 14:20:28下载
- 积分：1
