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Chapter6
数值解法
例1 用改进的欧拉方法求一阶方程初值问题的
数值解
例2 数学摆的运动方程与近似方程数值解比较
例3 四阶龙格库塔公式求数值解
Matlab实现求数值解
例1 求初值问题y =x*sin(x)-y,y(0)=0的数值
解.先编辑一个定义方程的ODEF函数文件
ODEfun1.m.
例2 求方程组初值问题的数值解,按指定步长
0.05划分节点.
例3 按指定的精度求高阶方程初值问题的数值解.(Numerical Solution of the law a method of using the improved Euler' s equation of order to a first-order initial value problem of the numerical solution of cases of two mathematical pendulum equations of motion compared with the approximate numerical solutions of equations of three cases of fourth-order Runge-Kutta numerical solution of the formula Matlab order to achieve the numerical solution of demand cases seeking an initial value problem y ' = x* sin (x)-y, y (0) = 0 the numerical solution. first, the definition of an equation editor ODEF function file ODEfun1.m. cases of two demand equations initial value problem of numerical solution, according to the specified division of the node step 0.05. Example 3 according to the specified precision of seeking higher-order equation of the numerical solution of initial value problem.)
- 2010-02-05 23:14:41下载
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DifferentialEvolution
说明: 这是微分进化的一些源程序。此程序的宫恩年个很强大,可以从事很多类别的优化。(Differential Evolution Program)
- 2009-08-19 15:41:41下载
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指纹定位算法仿真代码
定位指纹,室内,算法,欧式距离,最大后验概率,贝叶斯,加权贝叶斯,等(Location, fingerprint, interior, algorithm, Euclidean distance, maximum posterior probability, Bayes, weighted Bayes, etc.)
- 2020-07-04 16:00:02下载
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decompose
MATLAB实现声音信号的小波分解与重构(内副数据)(MATLAB voice signals in the wavelet decomposition and reconstruction (with Vice data))
- 2007-04-18 13:30:56下载
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ddifft
DIT FFT of sequence and comparison with fft function
- 2011-02-05 15:06:12下载
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nlse
解非线性薛定谔方程(相关的参数只需改成实际需要即可得到时域和频域图)(solve nlse)
- 2020-10-27 16:39:58下载
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Jakesmodel
经典的瑞利衰落信道仿真模型-jakes模型。程序可以修改不同的入射路径个数。仿真结果是不同入射路径个数的jakes模型和同分布的瑞利衰落的包络分布对比。直接运行“tu.m”(The classic Rayleigh fading channel simulation model-jakes model. Program can modify the number of incident path. The simulation results compare jakes model of different incident paths with distribution of Rayleigh fading.)
- 2021-04-10 13:28:59下载
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shengzipingmianbo
二维声子晶体能带结构计算程序,采用的是平面波展开法,并且可以用matlab到出能带结构图(Dimensional phononic crystal band structure calculation program, using the plane wave expansion method, and can be used to matlab energy band structure of FIG.)
- 2020-11-16 10:29:40下载
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RBM-DBN
有限玻尔兹曼机、深度置信网的Matlab实现,用mnist数据进行验证,对理解深度学习原理有帮助。(A Finite Boltzmann machine and deep belief network are implemented in MATLAB and verified with MNIST data. It is helpful to understand the principle of deep learning.)
- 2018-09-02 18:03:43下载
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使用遗传算法的模糊聚类的图像分割
基于遗传算法的聚类的模糊 C 的意思这内容的代码。
它是在 Matlab 中实现的。它做 FCM 采用优化遗传算法的主要特点
- 2022-02-01 05:33:15下载
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