登录
首页 » matlab » Conjugate-Gradient-Method

Conjugate-Gradient-Method

于 2017-03-14 发布 文件大小:359KB
0 252
下载积分: 1 下载次数: 13

代码说明:

  共轭梯度法(Conjugate Gradient)是介于最速下降法与牛顿法之间的一个方法,它仅需利用一阶导数信息,但克服了最速下降法收敛慢的缺点,又避免了牛顿法需要存储和计算Hesse矩阵并求逆的缺点,共轭梯度法不仅是解决大型线性方程组最有用的方法之一,也是解大型非线性最优化最有效的算法之一。 在各种优化算法中,共轭梯度法是非常重要的一种。其优点是所需存储量小,具有步收敛性,稳定性高,而且不需要任何外来参数。(Conjugate gradient method (Conjugate Gradient) is between the steepest descent method between the method and Newton' s method, it takes only a first derivative information, but to overcome the steepest descent method convergence slow shortcomings, but also to avoid the Newton method needs to be stored Hesse and disadvantages of computing inverse matrix and the conjugate gradient method is not only one of the most useful methods to solve large linear equations, solution of large-scale nonlinear optimization is one of the most effective algorithm. In various optimization algorithm, conjugate gradient method is a very important one. The advantage is that a small amount of memory required, with step convergence, high stability, and does not require any external parameters.)

文件列表:

Conjugate Gradient Method.m,314,2017-03-08
Conjugate Gradient Method.pdf,426509,2017-03-14
data.mat,282,2017-03-08

下载说明:请别用迅雷下载,失败请重下,重下不扣分!

发表评论

0 个回复

  • chenggongjiao
    处理任意两点间多条公交、地铁线路的到达问题此,改程序将一二问综合在一起,方便精简,运行速度快(Treatment between any two many bus, subway lines to reach this issue, change the program integrated with the twelve asked to facilitate streamlined, fast)
    2013-08-18 09:29:13下载
    积分:1
  • 1DSIMPLE
    一维SIMPLE算法,fortran语言交错网格算例,包含主程序和用户程序。(2D SIMPLE algorithm example Picks)
    2021-01-26 10:58:36下载
    积分:1
  • shanchen
    多孔介质流动程序,基于Shan-Chen模型,使用格子玻尔兹曼理论(Multi-component fluid, using a LB method,based on the Shan-Chen model)
    2020-09-24 09:07:48下载
    积分:1
  • fftwuserdll
    说明:  fftw 快速傅里叶变换, C#算法 直接调用dll(fftw fuliye bianhuan C# suanfa zhijie dianyong dll wenjian zhijie daoru fangzai bin wenjian jia zhong)
    2020-06-20 13:20:01下载
    积分:1
  • tsvd
    截断奇异值分解技术是一种正则化方法,用于不适定问题的数值计算(Truncated Singular Value Decomposition is a regularizaiton method for ill-conditioned problem computation.)
    2020-08-13 23:18:26下载
    积分:1
  • SQP
    本算法是基于数值计算中的SQP编写的MATLAB程序。非常实用的一个小程序。(This algorithm is based on the numerical calculation of SQP written MATLAB program. Very practical one small program.)
    2020-12-29 10:39:00下载
    积分:1
  • yuanmian
    圆面上的点到圆心的距离 圆面上的点到圆心的距离 圆面上的点到圆心的距离 圆面上的点到圆心的距离(Round surface of the distance from point to circle center point of the surface of the distance to the center circle to the center point of the surface of the distance from the surface point to the center circle distance)
    2011-04-26 00:41:31下载
    积分:1
  • juzhen2
    实现矩阵的四则运算,并能计算矩阵的特征值和特征向量(Four arithmetic operations of matrices are realized, and eigenvalues and eigenvectors of matrices can be calculated.)
    2019-06-11 15:21:39下载
    积分:1
  • sui-dao
    模拟隧道开挖后受力及变形,初始地应力清零及接触面分析处理。( U6A21 u62DF u96A7 u9053 u5F00 u6316 u53D7 u53B0 u53E u53E u53F8 u53E U6790 u5904 u7406 u3002)
    2017-05-18 19:36:00下载
    积分:1
  • sor
    两种SQR迭代法:将x^K与上次计算的结果做加权平均作为最后结果(Two kinds SQR iterative method:the x ^ K and the results of the last calculated as a weighted average of the final results do)
    2013-12-06 01:14:24下载
    积分:1
  • 696516资源总数
  • 106914会员总数
  • 0今日下载