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PCG
% SSOR预处理的共轭梯度法求解方程Ax=b
% 输入参数说明
% A 正定矩阵[n*n]
% b 右边向量
% omega SSOR预处理参数(0--2)
% Times 迭代次数
% errtol 给定误差终止条件
%
%输出参数
% NewX 方程Ax=b的x近似解
% avgerr 求解的当前平均绝对误差( SSOR preconditioning conjugate gradient method for solving equations Ax = b the input parameter descriptions A positive definite matrix [n* n] b right side vector omega SSOR preconditioning parameters (0- 2) Times iterations errtol termination of a given error condition NewX output parameter equation Ax = b of x approximate solution to solve the current avgerr average absolute error)
- 2007-11-16 01:14:24下载
- 积分:1
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经典99行拓扑优化程序
经典99行拓扑优化程序,采用Heaviside方程获得接近0-1离散解(The classical 99-line topology optimization program uses Heaviside equation to obtain nearly 0-1 discrete solution)
- 2020-06-20 00:00:02下载
- 积分:1
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lorenzeq
用Wolf法计算lorenzeq混沌系统的Lyapunov指数谱。改变混沌系统参数,计算准确,运行let.m文件,即可计算Lyapunov指数谱
(Wolf Law lorenzeq chaotic systems Lyapunov exponent spectrum. Change the chaotic system parameters, calculated accurate, run let.m file, you can calculate the Lyapunov exponent spectrum)
- 2012-11-08 21:13:43下载
- 积分:1
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UDF for thermal properties of water
密度,比热,热导率,粘性系数随压力、温度变化的UDF(UDF of density, specific heat, thermal conductivity, viscosity coefficient with pressure and temperature.)
- 2018-10-17 18:23:21下载
- 积分:1
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Classificacao
Code for Classification of points
- 2012-09-22 21:07:01下载
- 积分:1
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tree
设T 是一棵带权树,树的每一条边带一个正权。又设S 是T 的顶点集,T/S 是从树T 中
将S中顶点删去后得到的森林。如果T/S中所有树的从根到叶的路长都不超过d ,则称T/S
是一个d 森林。(this is a project )
- 2021-05-09 05:08:35下载
- 积分:1
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FindZeroOfBesselj
Matlab 算法寻找Bessel函数的零点。(find the zero point of Bessel functions)
- 2017-11-10 16:35:43下载
- 积分:1
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Euler2Quaternion
欧拉角与四元数 欧拉角与四元数 欧拉角与四元数 欧拉角与四元数 欧拉角与四元数(you you you you you you you you you you you you you you you you my )
- 2014-05-08 21:29:38下载
- 积分:1
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fortran_MD
Fortran编的关于分子动力学模拟的程序(Fortran programs compiled on the molecular dynamics simulations)
- 2014-02-26 22:16:23下载
- 积分:1
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DosBigMath
实现1到1000位的大数运算(包括加减乘除和浮点数运算),运行环境是vs2005(1-1000, large number operations (addition, subtraction and floating-point), the operating environment is vs2005)
- 2012-05-26 21:15:29下载
- 积分:1