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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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ODEs(MatlabSimulink
变系数/非线性微分方程的求解，包括原式及改变的式子。
(Variable coefficients/non-linear differential equations to solve, including the original style and formula changes.)
- 2020-07-13 22:28:53下载
- 积分：1
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SPH3DOnTheBook
Dr. Liu 在《光滑粒子流体动力学--一种无网格方法》一书中提供的光滑粒子流体动力学（SPH）源程序，采用Fortran语言编写，用于计算可压缩流体力学问题。(Dr. Liu in the " Smooth Particle Hydrodynamics- a meshless method," a book provided by the smooth particle hydrodynamics (SPH) source code, using Fortran language, used to calculate the fluid flow problem.)
- 2021-01-08 11:58:51下载
- 积分：1
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fit
基于Levenberg-Marquardt的曲线/面拟合(C library for Levenberg-Marquardt least-squares minimization and curve fitting)
- 2014-02-14 04:20:28下载
- 积分：1
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间断有限元
the structure of the DG-FEM is very similar to that of the finite element method (FEM), there are several fundamental differences. In particular,
the mass matrix is local rather than global and thus can be inverted at very
little cost, yielding a semidiscrete scheme that is explicit. Furthermore, by
carefully designing the numerical flux to reflect the underlying dynamics, one
has more flexibility than in the classic FEM to ensure stability for wavedominated problems. Compared with the FVM, the DG-FEM overcomes the
key limitation on achieving high-order accuracy on general grids by enabling
this through the local element-based basis
- 2022-06-13 20:11:15下载
- 积分：1
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302.L7.15Nov02
关于弹性能的一个ppt和弹性能计算有关很有用(Microstructure-Properties Elastic Effects, Interfaces)
- 2012-02-09 01:23:50下载
- 积分：1
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triangulation
三角形网格上的线性有限元方法求解Helmholtz问题，多项式重构以及Richardson外推(solve the Helmholtz equation with robin boundary condition on triangulation mesh, PPR and Richardson extrapolation)
- 2020-06-16 07:20:01下载
- 积分：1
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关于轴承刚度方程的MATLAB程序
说明： 这个程序是关于轴承刚度方程的MATLAB程序(This program is about the bearing stiffness equation MATLAB program)
- 2021-04-13 15:38:56下载
- 积分：1
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6.5M2
偏微分方程的数值解法，简单的离散 变分以及求解过程(Numerical solution of partial differential equations, the simple and the solution process of discrete variational)
- 2011-08-15 19:58:51下载
- 积分：1
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Untitled
通过采集直流输电线路正负极故障电流信息，实行正负极解耦，用行波进行故障定位( U901A u8FC1 u91C0 u96C6 u76R4 u6D1 u8F93 u7535 u7EBF u8DEF u6B63 u8D1F u6781 u6545 u969C u7535 u6D41 u4D1 u606F uFF0C u5B9E u882C u6B63 u8D1F u6781 U89E3 u806 uFF0C u7528 u884C u6)
- 2017-04-26 22:17:31下载
- 积分：1
