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平均因子分解法应用于正定矩阵
平均因子分解法,适用于正定矩阵First, let s recall the definition of the Cholesky decomposition: Given a symmetric positive definite square matrix X, the Cholesky decomposition of X is the factorization X=U U, where U is the square root matrix of X, and satisfies:
(1) U U = X
(2) U is upper triangular (that is, it has all zeros below the diagonal).
It seems that the assumption of positive definiteness is necessary. Actually, it is "positive definite" which guarantees the existence of such kind of decomposition. -Average factor decomposition method applied to positive definite matrix First, let s recall the definition of the Cholesky decomposition: Given a symmetric positive definite square matrix X, the Cholesky decomposition of X is the factorization X = UU, where U is the square root matrix of X, and satisfies: (1) UU = X (2) U is upper triangular (that is, it has all zeros below the diagonal). It seems that the assumption of positive definiteness is necessary. Actually, it is positive
- 2022-10-16 04:30:02下载
- 积分:1
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简单的广播
这是一个小的程序在 NS2 中为简单广播数据包从服务器到客户端的无线介质中
- 2022-07-10 14:36:06下载
- 积分:1
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遥感影像重采样
应用背景应用于遥感影像的重采样,可以重采样成各种你所需要的分辨率的影像。如30m分辨率的遥感影像,可以重采样成3km,也可以重采样成10m分辨率的影像。关键技术利用GDAL进行编写的,支持最邻近,双线性内插法,三次卷积法,均值法,B样条等重采样算法,具体参见gdalwraper.h。
- 2022-02-04 11:02:02下载
- 积分:1
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基于matlab的约束非线性规划算法库,适于学习!
基于matlab的约束非线性规划算法库,适于学习!-Matlab-based algorithm for the constrained nonlinear programming library, suitable for learning!
- 2022-04-12 20:56:36下载
- 积分:1
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gdal读入测试代码
gdal读入测试代码,vs2008工程。GDAL是一个操作各种栅格地理数据格式的库。包括读取、写入、转换、处理各种栅格数据格式(有些特定的格式对一些操作如写入等不支持)
本测试代码在读入图像后,读取图像尺寸
- 2022-03-13 11:43:41下载
- 积分:1
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FCM matlab
遗传算法,可应用于图像处理等领域,英文名称为Genetic Algorithm,是一种非常经典的方法,该matlab程序为原创程序,简易清晰明了,标注得当,采用文件包,内含代码以及遗传算法的报告说明及几个论文,供学习交流。
- 2022-05-31 06:26:52下载
- 积分:1
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约瑟夫(Joseph)环C语言实现
Joseph环问题描述如下:编号是2,n个人按照顺时针方向围坐一圈,每个人只有一个密码(正整数)。一开始任选一个正整数作为报数上限值1开始顺序报数,报到m的人出列,将他的密码作为新的1报数,如此下去,直到所有人全部出列为止。设计一个程序来求出出列顺序。
- 2023-04-19 02:35:04下载
- 积分:1
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提供的为清华大学出版社出版的C常用算法程序集一书中的程序
提供的为清华大学出版社出版的C常用算法程序集一书中的程序-of Qinghua University Press published for the C algorithm commonly used procedures set a book of procedures
- 2022-04-23 21:39:52下载
- 积分:1
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一个求素数个数的程序 算pi(1000000000)不要1秒每个块如果10 0000, 需要 < 100000次全搜索加上8000 * 8000 <...
一个求素数个数的程序 算pi(1000000000)不要1秒每个块如果10 0000, 需要 < 100000次全搜索加上8000 * 8000 < 6400 0000 总的次数小于7000 0000,就是说,搜索次数大大降低-for a few number-counting procedures pi (1000000000) not a second of each block of 10 0000, the need lt; Search 100,000 plenary with 8,000* 8,000 lt; 6400 0000 total is less than the number 7000 0000, that is to say, greatly reducing the number of search
- 2022-03-22 17:01:12下载
- 积分:1
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Curve cubic spline interpolation, in both nodes with non
曲线的三次样条插值,在非首尾节点处具有三次光滑性质-Curve cubic spline interpolation, in both nodes with non-smooth nature of the three
- 2022-12-27 13:05:04下载
- 积分:1