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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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Latex
说明: 经典的latex教程,讲的很清楚。从排版,字体,数学公式到制图,制表,都给出了详细的介绍。(Classic latex tutorial, said very clearly. From the layout, fonts, mathematical formula to the mapping, tabulation, are given in detail.)
- 2011-02-17 18:47:01下载
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Enhanced-Face-Recognition-using-Cross-Local-Radon
In this document we proposed a face recognition algorithm that enhance the recognition rate and reduce the complexity.
- 2014-09-17 17:31:32下载
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AHP-MATLAB
ahp的matlab程序,输入矩阵即可使用(ahp matlab program, you can use the input matrix)
- 2014-02-24 17:26:19下载
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relax
在目标为1的假设下,应用relax算法进行目标超分辨成像(The assumption that the target was 1, applying relax super-resolution imaging algorithm for target)
- 2021-01-26 17:18:41下载
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controller
网络控制器的文章,主要应用场合为工控行业,希望对大家有用(Network controller of the article, the main applications for the industrial sector, in the hope that useful)
- 2009-06-23 10:43:42下载
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sub_AIC
matlab程序,用pca分解重构对原始信号进行噪声抑制,利用bic准则进行主分量阶数选择(matlab program, using pca decomposition and reconstruction of the original signal noise suppression, the use of principal component bic guidelines Order Selection)
- 2013-07-21 11:39:45下载
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base
1.分别在两个图中画出δ(n)和δ(n-2),其中-10≤n≤10,画出U(n)其中-10≤n≤10。
2.分别在两个图中画出x1(n)=cos(2π×20×0.01×n),0≤n≤10和x2(n)=(0.8)n,1≤n≤6。
3.由上一题,计算y(n)=x1(n)+x2(n),并画图。(1. Draw the figure at two δ (n) and δ (n-2), where-10 ≤ n ≤ 10, draw the U (n) where-10 ≤ n ≤ 10. 2. Respectively in the two Draw the figure x1 (n) = cos (2π × 20 × 0.01 × n), 0 ≤ n ≤ 10 and x2 (n) = (0.8) n, 1 ≤ n ≤ 6. 3. from the previous question, calculate y (n) = x1 (n)+ x2 (n), and drawing.)
- 2010-11-26 16:34:06下载
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qianxiang
本程序使用matlab仿真exprit算法并且可以通过前项平滑技术计算相关信号的方向
解决了exprit不能测相关信号方向的问题
(加入了每一步的注释简单易懂)(use f exprites shooming complete exprit)
- 2010-07-01 22:44:38下载
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zhijiezhuanj
Direct Torque Control System!!!Direct Torque Control SystemDirect Torque Control System(Direct Torque Control System! ! ! Direct Torque Control SystemDirect Torque Control System)
- 2008-06-03 10:36:03下载
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