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fft_基2基4基8
说明: 基2基4基8以及分裂基的fft算法,代码效率很高。是难得一见的好代码。应用范围很广。(Radix-2-4-based 8 and split fft-based algorithm, a high code efficiency. Is a rare good code. Application of a very wide scope.)
- 2021-02-20 13:59:43下载
- 积分:1
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legendrefit
Legendre polynomial fitting(勒让德多项式拟合)
该算法程序找出N阶勒让德多项式你的的权值系数 (Legendre polynomial fitting (Legendre polynomial fitting) procedures to identify the algorithm N-order Legendre polynomials your weight coefficient)
- 2008-12-27 03:38:23下载
- 积分:1
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SVDCMP
奇异值快速分解程序,相比其他奇异值分解程序,速度快,解的精度高。(Fast singular value decomposition process, compared to other singular value decomposition process, fast, high precision solution.)
- 2020-08-14 15:28:27下载
- 积分:1
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MYFEM
有限元求解柏松方程。本文采用FORTRAN语言编制程序。程序中大部分变量采用有名公共区存储方式存储,这样可以减少内存占用量。
IFG:生成有限元网格信息,即元素节点局部编码与总体编码对照表,节点实际坐标,边界节点编码与边界点上的已知值
GKD:生成总刚一维存储对角元的地址,计算总刚一维存储长度
FIXP:设置已知节点函数值
GK(NI,NJ,ADJ,AIJ):单元刚度矩阵计算
GF(NI,N,M,LE,YI,FE):单元列阵的计算
AK(I,J,AIJ):总刚度矩阵元素迭加
QEB:总刚度矩阵和总列阵合成
BDE:边界条件处理
SOLGS:Gauss-Seidel迭代法求解方程组
UDIFF(NI,NFLAG,UDIF,LE,ADJ):标准元素内形状函数导数计算
DIFF:节点上 , 加权平均
(In this program, FEM was used to solve the possion equation. It is implemented through FORTRAN)
- 2009-05-22 17:22:56下载
- 积分:1
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PMF-FFT
详细介绍了PMF-FFT的原理和实现方法,对于初学者有一定的帮助(Details of the theory and implementation of PMF-FFT, there is some help for beginners)
- 2021-05-13 08:30:02下载
- 积分:1
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pso
粒子群算法,也称粒子群优化算法或鸟群觅食算法(Particle Swarm Optimization),缩写为 PSO。它具有精度高,收敛快等优点,广泛用于系统辨识、函数优化等领域。文件pso.m是粒子群算法辨识程序,在此基础上,需要自行编写目标函数计算程序以实现不同系统的参数辨识。(Particle swarm optimization (PSO), also known as particle swarm optimization algorithm or bird swarm foraging algorithm (Particle Swarm Optimization), abbreviated as PSO. It has the advantages of high precision and fast convergence. It is widely used in system identification, function optimization and other fields. The document pso.m is a particle swarm algorithm identification program. On this basis, it is necessary to write an object function calculation program to realize the parameter identification of different systems.)
- 2017-09-29 12:52:29下载
- 积分:1
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fractional-order-chen-system
分数阶chen系统仿真 在matlab中运行,可实现分数阶chen系统的混沌模型( simulation of fractional order chen system , simulation of fractional order chen system )
- 2012-06-16 12:32:51下载
- 积分:1
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ansys二次开发
ansys二次开发 开发语言主要基于UIDL和APDL开发方法 来源网络(ansys secondary development source. UIDL and APDL develapment langrage.)
- 2020-06-23 13:20:02下载
- 积分:1
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equation
线性方程组的计算,采用的是高斯消元法来实现的。只有主要的算法代码,没有写主函数(Calculation of linear equations using the Gauss elimination method to achieve. Only the main algorithm code, did not write the main function)
- 2010-08-05 19:34:04下载
- 积分:1
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Network
对于给定某一线性时不变网络(不含受控源),根据网络属性及结构,通过编程实现自动生成其关联矩阵A和一个树。(Given a linear time-invariant network (excluding controlled source), according to the network properties and structure of the automatically generated by programming its associated matrix A and a tree.)
- 2013-11-03 18:32:12下载
- 积分:1