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numerical-analysis

于 2013-07-01 发布文件大小:2KB

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高斯-塞德尔迭代、拉格朗日差值、牛顿法、四阶龙格库塔与数值分析有关的公式(Gauss- Seidel iteration)

文件列表：

数值分析
........\Gauss-Seidel.cpp,1036,2013-05-28
........\四阶龙格——库塔.cpp,590,2013-05-26
........\拉格朗日差值.cpp,438,2013-05-28
........\牛顿法.cpp,637,2013-06-29

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tianwen
说明： VC实现，天文导航算法及实现包括数据的获取、加工、处理、保存为文件(VC, astronomy, navigation algorithm and implementation including data acquisition, processing, handling, preservation of documents)

2020-09-29 16:17:44下载

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CUDA-SAR-
在VS2005环境下，使用CUDA编程实现SAR成像中CSA算法的实现，得到了很好的加速比。(In the VS2005 environment, using the CUDA programming SAR imaging algorithm implementation in the CSA, has been very good speedup.)

2011-07-20 15:23:16下载

积分：1
quadTreeMortCode
编写求取下述矩阵四叉树四进制M码和十进制码程序，并将运算结果返回。 1, 1, 1, 1, 2, 2, 3, 3, 1, 1, 1, 1, 2, 2, 3, 3, 1, 1, 1, 1, 4, 4, 5, 5, 1, 1, 1, 1, 4, 4, 5, 5, 6, 6, 7, 8,13,13,14,14, 6, 6, 9,10,13,13,14,14, 11,11,12,12,15,16,19,19, 11,11,12,12,17,18,19,19 (Prepared to strike the following matrix quadtree quaternary M code decimal code and procedures, and the operation result returned. 1, 1, 1, 1, 2, 2, 3, 3, 1, 1, 1, 1, 2, 2, 3, 3, 1, 1, 1, 1, 4, 4, 5, 5, 1, 1, 1, 1, 4, 4, 5, 5, 6, 6, 7, 8,13,13,14,14, 6, 6, 9,10,13,13,14,14, 11, 11, 12,12,15,16,19,19, 11,11,12,12,17,18,19,19)

2020-11-21 12:19:35下载

积分：1
shuzhifenxi
北京航空航天大学硕士研究生数值分析课的第一次大作业，用幂法反幂法求取矩阵的最大最小特征值(Minimum and maximum eigenvalue of the first graduate of Beijing University of Aeronautics and Astronautics numerical analysis class job, using the power method matrix inverse power law to strike)

2012-12-05 22:07:01下载

积分：1
PE
说明：计算潜在蒸发，方法为彭曼法，需要气温、日照、风速等资料，具体详见程序界面(Pe calculation)

2011-12-02 11:51:02下载

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计算方法《牛顿差值》(calculation method, "Newton margin")

2005-01-25 21:40:20下载

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Euler_DG_Quadrilateral_2D
自己写了一个二维Euler方程的间断有限元程序上次发了一个三角形单元的程序因为不是曲边单元所以在圆柱后面容易形成涡现在把程序改为曲边四边形单元了没有涡出现单元是8节点四边形单元节点编号顺序是 1 5 2 6 3 7 4 8 也就是四个角点依次是1 2 3 4 然后是边的中点编号 5 6 7 8. 时间推进采用 Runge-Kutta 方法数值通量采用全局Lax-Friedrichs通量仍然不能捕捉激波因为没有做重构或者加人工粘性等这个做出来了再发一次。程序没有进行优化比如说内存的消耗没有优化比如直边单元的边界积分仍然采用了曲边的积分方法增加了计算量比如面积分、线积分都是采用的是Gauss- Legendre-Lobatto积分积分精度会比一般的Gauss-Legendre积分精度低一阶等等问题。二维的纯属交流性质就没有考虑这些问题 ^_^ 如果物面全部是直边那么只要改变一个参数N 就可以获得不同的计算精度且具有谱精度因为单元的节点是Gauss-Legendre-Lobatto积分点。其实就是谱元法（物面是曲边的情况我不清楚是不是也可以通过提高基函数的阶数也就是增加N 来提高计算精度）(Wrote a two-dimensional Euler equations with discontinuous finite element program Last made a triangular element of the program, not curved edge unit is so easy to form a vortex in the cylinder behind the Program to curved edge quadrilateral element vortices appear Unit is the order of 8-node quadrilateral element node number is 15,263,748 which is the four corners of the points in turn Is 1234 and then the side of the midpoint of the number 5678. Time promote the use of Runge-Kutta method Numerical flux of the overall situation of Lax-Friedrichs, flux Still can not capture the shock wave did not do the reconstruction or artificial viscosity do it Zaifayici. The program is not optimized for example, memory consumption is not optimized such as straight-edge boundary integral of the unit is still mining Integral method to increase the amount of computation such as surface integral with a curved edge, the line integral using the Gauss- The Legendr)

2021-01-29 12:58:40下载

积分：1
reynoldre
湍流模型re计算流体力学软件udf 可以用于修改UDF文件(turbulence model FLUENT)

2021-01-02 15:18:57下载

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19864062MatrixOper
对于协方差矩阵的一种计算方法，对于地震中的反演约束算法能起到很好的作用。(For a kind of covariance matrix calculation method)

2011-05-30 13:43:06下载

积分：1
SerieAritmetica
Una serie aritmetica en visual basic!!

2011-09-09 06:49:44下载

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numerical-analysis

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