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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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查找字符串
字典树，前几个月做过个关键字过滤的东东，用的AC自动机的算法（Bell实验室70年代研究出的东东，详情请找度娘），10w数据量也就是0.x秒的事
而且这个算法，执行时间只与树的高度有关，与数据量无关，也就是说，哪怕你数据量再扩大一百倍，只要每个数据都是32位，那么时间就是固定的
- 2023-01-26 13:55:03下载
- 积分：1
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通过一系列的数据来预测和分析方法。ARMA算法
通过使用ARMA算法对一系列数据进行预测，并分析预测规律-ARMA algorithm by using a series of data to predict and analyze the prediction rule
- 2022-09-03 19:00:03下载
- 积分：1
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为实现fdtd3d平面波TF / TS编码
code for implementation FDTD3D with plane wave tf/ts
- 2022-05-06 05:44:54下载
- 积分：1
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C语言求逆矩阵
C语言求逆矩阵 介绍一下算法导论上的一般的矩阵求拟算法思路。 假设要对矩阵A求逆，首先利用矩阵论知识，对A进行LUD分解。 利用分解出来的矩阵L，U，D来求解AB=I中的n个线性方程组，得到n个解向量，所有解向
- 2023-01-13 23:50:03下载
- 积分：1
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实现集合的交和并集
实现集合的交和并集- The realization gathers junction with sum aggregate
- 2022-09-30 21:30:03下载
- 积分：1
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bo tay voi trang
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- 2022-03-07 16:52:54下载
- 积分：1
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QAM 星座
General constellation QAM algorithm is implemented.This function was tested with both MATLAB & Octave.
- 2022-04-06 13:06:53下载
- 积分：1
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用于图象边缘检测，是一个视频采集的基础
用于图象边缘检测，是一个视频采集的基础-for image edge detection, is a collection of video
- 2023-01-24 02:40:04下载
- 积分：1
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一个非常实用的c语言快速傅立叶变换程序，可以做傅立叶正变换和反变换
一个非常实用的c语言快速傅立叶变换程序，可以做傅立叶正变换和反变换-A very useful fast Fourier transform c language program, you can now make Fourier transform and inverse transform
- 2023-03-29 04:25:03下载
- 积分：1
