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Hypercomplexmathematicalmorphology
Hypercomplex mathematical morphology
- 2009-12-29 16:34:22下载
- 积分:1
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dec_to_dianjingdufudian
该程序完成了十进制数(包括小数)到二进制单精度浮点数的转换(The program completed a decimal number (including decimals) to single-precision floating-point binary conversion)
- 2013-05-26 10:32:28下载
- 积分:1
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1003
c++算法源代码,主要是POJ上面的算法,根据标号可以找到。(c++ algorithm source code, POJ above algorithm, based on the label can be found.)
- 2012-09-12 22:28:34下载
- 积分:1
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digital5
数值计算的算法,采用c++实现,移植容易,一定能够用。(Data processing)
- 2010-12-23 06:01:07下载
- 积分:1
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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
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spmv_csr
稀疏矩阵的DIA/ELLPACK/COO/CSR/HYB表示形式,以及各表示形式下的稀疏矩阵乘法(稀疏大矩阵*矢量)的CUDA实现。对于矩阵中每一行稀疏元素个数较统一的情况,ELLPACK表示最佳,其次是HYB(ELL+COO)。
CUDA™ 是一种由NVIDIA推出的通用并行计算架构,该架构使GPU能够解决复杂的计算问题。 它包含了CUDA指令集架构(ISA)以及GPU内部的并行计算引擎。 开发人员现在可以使用C语言来为CUDA™ 架构编写程序(Sparse matrix DIA/ELLPACK/COO/CSR/HYB representation, as well as the representation of the sparse matrix multiplication (large sparse matrix* vector)' s CUDA implementation. For each row of the sparse matrix representing the number of elements the case of unification, ELLPACK that the best, followed by HYB (ELL+COO). NVIDIA CUDA ™ is introduced by a general purpose parallel computing architecture that makes the GPU to solve complex computational problems. It contains the CUDA Instruction Set Architecture (ISA) and the GPU parallel computing engine. Developers can now use the C language to write programs for the CUDA ™ architecture)
- 2013-07-11 17:46:21下载
- 积分:1
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curthr1
完成地震数据的curvelet阈值重构功能算法简洁注释详细(Completion of seismic data the curvelet threshold reconstruction algorithm is simple function comment in detail)
- 2013-05-08 16:44:51下载
- 积分:1
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Monte-Carlo
基于蒙特卡罗算法的电力系统风险评估研究_李彦生。利用蒙特卡洛抽样和潮流计算方法计算电力系统可靠性(Based on the Monte Carlo algorithm for power system risk assessment studies _ Li Yansheng. Monte Carlo sampling and flow calculation method of the calculation of the power system reliability)
- 2021-05-01 11:01:52下载
- 积分:1
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a-new-Least-squares-fitting-method
本程序是基于非等距节点的正交多项式的最小二乘法拟合算法,该算法已经在vc++6.0下调试通过,经多次验证,本算法的拟合误差较小。(This procedure is based on equidistant nodes of non-orthogonal polynomial least squares fit algorithm, which has been in vc++6.0 through debugging, after repeated verification, the algorithm of fitting error is small.)
- 2021-04-11 11:18:57下载
- 积分:1
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对相干信号进行方位估计 TOELITZ_MUSIC
对相干信号进行方位估计,使用TOEPLITZ矩阵进行解相干,music算法进行DOA估计(Estimation of the azimuth of coherent signals, decoherence using TOEPLITZ matrix and music algorithm for DOA estimation)
- 2020-06-28 10:00:01下载
- 积分:1