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SVD
% 奇异值分解 (sigular value decomposition,SVD) 是另一种正交矩阵分解法;SVD是最可靠的分解法,
% 但是它比QR 分解法要花上近十倍的计算时间。[U,S,V]=svd(A),其中U和V代表二个相互正交矩阵,
% 而S代表一对角矩阵。 和QR分解法相同者, 原矩阵A不必为正方矩阵。
% 使用SVD分解法的用途是解最小平方误差法和数据压缩。用svd分解法解线性方程组,在Quke2中就用这个来计算图形信息,性能相当的好。在计算线性方程组时,一些不能分解的矩阵或者严重病态矩阵的线性方程都能很好的得到解( Singular value decomposition (sigular value decomposition, SVD) is another orthogonal matrix decomposition method SVD decomposition is the most reliable method, but it takes more than QR decomposition near ten times the computing time. [U, S, V] = svd (A), in which U and V on behalf of two mutually orthogonal matrix, and the S on behalf of a diagonal matrix. And QR decomposition are the same, the original matrix A is no need for the square matrix. The use of SVD decomposition method are used as a solution of least squares error method and data compression. Using SVD decomposition solution of linear equations, in Quke2 on to use this information to calculate the graphics performance quite good. In the calculation of linear equations, some indecomposable matrix or serious pathological matrix of linear equations can be a very good solution)
- 2020-12-21 10:29:08下载
- 积分:1
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QR分解
该程序是利用GIvens变换进行矩阵的QR分解(The program uses GIvens transform to solve QR matrix.)
- 2021-03-08 10:59:28下载
- 积分:1
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NND2D
用于求解二维欧拉流动方程的有限差分程序,基于NND法,求解精度较高.(Perfect fortran program by two dimensional NND finite difference method for Euler Equations on unstructured Grids, structured Grids and adaptive unstructured Grids. )
- 2011-12-12 21:08:50下载
- 积分:1
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FVM-convection-and-diffusion
流体力学中有限体积法的求解程序,matlab代码-Finite volume method for solving procedures, matlab code(matlab code, -Finite, volume, method, for, solving, procedures, MATLAB, code)
- 2017-06-15 14:36:34下载
- 积分:1
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microdisk_FDTD_backup
FDTD Solutions 是一款三维麦克斯韦方程求解软件,可以分析紫外、可见、红外至太赫兹和微波频率段电磁波与具有亚波长典型尺寸复杂结构的相互作用。
FDTD Solutions 使得设计师能够从容地面对光子设计复杂的挑战问题。快速原型制造和高精度仿真大大降低对费用高昂的原型试验的依赖,因而可以对设计概念进行快速评价,进而缩短产品研发周期,降低费用。 FDTD Solutions 可以帮助你成功应对各种复杂的应用,从基础光子学研究,到目前工业界领先应用领域如成像、照明、生物光子学、光伏、以及众多其他应用。(FDTD Solutions is a three-dimensional software for solving Maxwell' s equations, we can analyze the ultraviolet, visible, infrared and microwave to terahertz frequencies of electromagnetic waves having a typical size of subwavelength interaction of complex structures. FDTD Solutions allows designers to calmly face the complex photonic design challenges. Rapid prototyping and simulation precision greatly reduce dependence on costly prototype testing, which can quickly uate design concepts, and thus shorten the product development cycle and reduce costs. FDTD Solutions can help you successfully deal with a variety of complex applications, leading application areas such as imaging, lighting, biophotonics, photovoltaics, and many other applications basic photonics research, the current industry.)
- 2016-03-20 17:40:02下载
- 积分:1
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5CFDprogram
压缩包中包含五个CFD基础程序,其中MacCormack1DSolveRiemann.for是一维欧拉方程求解(黎曼问题),UpwindTVD_1D.for是一维可压粘性N-S方程求解,MAC-Chorin2D.for是利用MAC算法和Chorin压力迭代解法求解
二维不可压缩黏性平板间Poisuille流动问题,Lax-Webdroff2D.for是利用Lax-Webdroff差分格式求解二维平面激波反射问题,fvm_upwind_MAC_couette.for是以一阶迎风型离散格式和Chorin压力迭代求解couette二维流动问题。(CFD compression package contains five basic program, which is an Euler equation solving MacCormack1DSolveRiemann.for (Riemann problem), UpwindTVD_1D.for is one-dimensional compressible viscous NS equation solving, MAC-Chorin2D.for is the use of algorithms and MAC Chorin pressure iterative solution for solving the two-dimensional incompressible flow problems between viscous flat Poisuille, Lax-Webdroff2D.for using Lax-Webdroff difference scheme for solving the two-dimensional plane shock wave reflection problem, fvm_upwind_MAC_couette.for based on first order upwind scheme and Discrete Chorin pressure couette iterative solution of two-dimensional flows.)
- 2015-01-16 19:01:12下载
- 积分:1
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EKF_UKF_PF_EKPF
EKF,UKF,PF,EKPF四种滤波算法的比较和matlab编程,能实现简单的单个目标跟踪滤波(EKF, UKF, PF, EKPF four kinds of comparison and filtering algorithm matlab programming, to achieve a simple single target tracking filter)
- 2021-04-27 10:28:44下载
- 积分:1
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curl
利用风速u,v计算海表风应力以及风应力旋度。(Calculation of sea surface wind stress and wind stress curl.)
- 2021-01-06 12:48:53下载
- 积分:1
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Bayesian-Methods-for-Hackers
贝叶斯统计推断相关资料和贝叶斯方法,学习贝叶斯不错的资料(Bayesian statistical inference related data and bayesian methods, learning bayesian good data)
- 2020-06-24 01:20:02下载
- 积分:1
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EM-and-antenna-field
该文件解决了电磁场和天线问题计算当中的近远场转换的问题,它也可以应用在一般散射问题的求解中。(this file contains an algorithm that could solve problems within the EM and antenna near to far field questions. Also, it could be used in general scattering problems.)
- 2012-11-20 16:07:13下载
- 积分:1