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zenike-nihe

于 2020-12-08 发布文件大小:6KB

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泽尼克拟合算法，包括直角坐标系拟合和极坐标系的拟合，成熟代码，还请放心！(Zernike fitting algorithm, including fitting, fitting and polar coordinates Cartesian coordinates of the mature code, please rest assured!)

文件列表：

泽尼克拟合
..........\jizuobiao1.m,2229,2014-03-21
..........\jizuobiao2.m,2101,2014-03-21
..........\zhijiaozuobiao1.m,6652,2014-03-21
..........\zhijiaozuobiao2.m,2629,2014-03-21

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PQ decomposition method
进行PQ分解，计算电力系统潮流的有效方法，应用广泛(PQ decomposition is an effective method for calculating power flow in power system.)

2019-04-23 21:34:16下载

积分：1
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
四面体单元
针对三维问题，建立四面体单元的有限元方法(Finite element method for establishing tetrahedron element)

2017-08-09 20:29:13下载

积分：1
Homotopy
求解非线性方程组的同伦曲线法(Solving nonlinear equations homotopy curve method)

2008-07-04 01:42:06下载

积分：1
Chfia-caq-method
埃特金加速法中国矿业大学理学院计算方法实验5,还可以的(Aitken acceleration method China mining university faculty of science calculation method for the experiment 5, you can also)

2017-07-23 04:11:20下载

积分：1
基于傅立叶变换FFT的大规模海面的实现方法
说明：基于傅立叶变换FFT的大规模海面的实现方法(Realization of Large-scale Sea Surface Based on Fourier Transform FFT)

2019-02-15 12:53:25下载

积分：1
box-girder-finite-element
介绍箱梁的有限元建模网格划分边界条件加载求解的命令流(Introduction of finite element modeling of the box girder meshing load boundary conditions for solving the command stream)

2013-04-18 15:16:26下载

积分：1
zuixiaojiaocha
偏最小二乘法中的交叉有效性计算,看看，可能有用(PLS cross-validity of the calculation, see, may be useful)

2008-05-13 21:14:08下载

积分：1
lanczosfilter
说明：对时间序列进行滤波，去掉噪声，得到平滑后的数据(Filters a time series via Lanczos method (cosine filter).)

2020-03-23 19:41:37下载

积分：1
KnapSack
Fractional knapsack problem, Greedy algorithm

2010-05-12 09:52:02下载

积分：1

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