登录
首页 » matlab » PCG

PCG

于 2007-11-16 发布 文件大小:1KB
0 246
下载积分: 1 下载次数: 360

代码说明:

  % 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)

文件列表:

PCG.m

下载说明:请别用迅雷下载,失败请重下,重下不扣分!

发表评论

0 个回复

  • 非线性方程组求解
    说明:  常用的matlab代码,非线性方程组求解,基本可以满足大学和研究生常用代码(Common Mathematical Codes)
    2019-04-22 23:23:03下载
    积分:1
  • data
    幂律分布的数据案例,这个案例数据有助于理解幂律分布的计算公式。(The case of power-law distribution of data, case data will help to understand the power-law distribution formula.)
    2012-12-19 01:32:50下载
    积分:1
  • spline
    样条插值算法的matlab代码,包括一次样条插值,二次样条插值和三次样条插值,可根据需要选择(Spline interpolation algorithm matlab code, including a spline interpolation, quadratic spline interpolation and cubic spline interpolation, can be selected)
    2020-12-23 20:49:06下载
    积分:1
  • cycliiqafb
    三次样条插值的C语言算法,但是总是数据溢出(Cubic spline interpolation C language algorithm, but always data overflow)
    2018-11-09 21:05:00下载
    积分:1
  • hPSO
    hybrid particle swarm optimization
    2016-09-16 22:36:56下载
    积分:1
  • Simple
    求解速度压力耦合的Simple半隐式迭代方法,该方法在计算流体动力学中应用极为广泛(To solve the pressure velocity coupling Simple semi-implicit iterative method, the method applied in the Computational Fluid Dynamics an extremely wide range of)
    2021-01-05 09:08:54下载
    积分:1
  • 最速下降法求解方程组
    说明:  最速下降法就是梯度下降法,可以用于求解最小二乘问题(线性和非线性都可以)。可以说是求解机器算法的最古老、最经典的模型,另一种常用的方法是最小二乘法。(The steepest descent method is the gradient descent method, which can be used to solve the least squares problem (both linear and non-linear). It can be said that it is the oldest and most classical model for solving machine algorithm. Another commonly used method is the least square method.)
    2019-05-13 21:13:18下载
    积分:1
  • FFT842
    基二、基四、基八 FFT变化源代码,有详细注解(Second base, the base four or eight FFT-based changes in the source code, detailed comments)
    2021-02-20 14:09:43下载
    积分:1
  • Neandla
    计算牛顿和拉格朗日插值方法,用户输入插值结点(calculated Newton and Lagrange interpolation methods, user input interpolation nodes)
    2007-05-13 12:33:16下载
    积分:1
  • Laguerre-fitting
    基于Laguerre多项式的拟合程序,可以控制多项式的结束,以及变量alpha。(Based on Laguerre polynomial fitting procedure, you can control the end of polynomials, and variable alpha.)
    2014-01-02 21:43:58下载
    积分:1
  • 696516资源总数
  • 106914会员总数
  • 0今日下载