以下是在MATLAB中实现稳定的双共轭梯度法(BiCGStab)的示例代码: ```matlab function [x, res, iter] = bicgstab(A, b, tol, max_iter) %输入:矩阵A,向量b,迭代收敛容差tol,最大迭代次数max_iter %输出:解向量x,残差向量res,实际迭代次数iter
采用matlab求解该方程组的解: 通过对比可知11次迭代已经获得即为准确的结果。实际上,对于该方法也可以通过一定的预处理方式,使得其所需要的迭代次数更少。 以上,就是稳定双共轭梯度法求解线性方程组的内容,感谢您的阅读! 欢迎关注公众号 有限元术
In MATLAB®, write a function that creates these vectors and adds them together, thus giving the value of A*x: function y = afun(x) y = [0; x(1:20)] + ... [(10:-1:0)'; (1:10)'].*x + ... [x(2:21); 0]; end (This function is saved as a local function at...
45.bicgstabl函数 在MATLAB中,提供了bicgstabl函数实现双共轭梯度稳定法。函数的语法格式为: x=bicgstabl(A,b):针对x对线性方程组A∗x=b求解。n×n系数矩阵A必须是方阵,并且右侧列向量b的长度必须为n。 x=bicgstabl(afun,b):接收函数句柄afun而不是矩阵A。afun(x)接收向量输入x,并返回矩阵与向量积A...
依据上述过程编写程序,计算前述非对称矩阵线性方程组求解结果: 采用matlab求解该方程组的解: 通过对比可知11次迭代已经获得即为准确的结果。实际上,对于该方法也可以通过一定的预处理方式,使得其所需要的迭代次数更少。以上,就是稳定双共轭梯度法求解线性方程组的内容,感谢您的阅读!欢迎关注公众号 有限元术 ...
In MATLAB®, write a function that creates these vectors and adds them together, thus giving the value of A*x: function y = afun(x) y = [0; x(1:20)] + ... [(10:-1:0)'; (1:10)'].*x + ... [x(2:21); 0]; end (This function is saved as a local function at...
MATLAB Answers GPU equivalent of "whos" or "feature memstat" ? 2 답변 getting running CPU core 0 답변 Is the pny GeForce rtx 3090 supported by the deep learning toolbox? 1 답변 전체 웹사이트 Image3 File Exchange ...
matlab常用函数(转载) - Roy的日志 - 网易博客 ... bicg 双共扼梯度法 bicgstab 双共扼梯度稳定法 cgs 二次共扼梯度法 ... royroyyy.blog.163.com|基于14个网页 2. 稳定双共轭梯度 ...2%的双精度浮点效率上限;应用于共轭梯度(CG)与稳定双共轭梯度(BiCGStab)求解器,相对于DIA格式均有1.5倍左右的加速...
the algorithm GMRES is presented in Wikipedia (Matlab/Octave version):https://en.wikipedia.org/wiki/Generalized_minimal_residual_method Repository Structure The/SOLVERSdirectory contains : /src fileSOLVERS_base.f90contains an implementation of the BCGSTAB or GMRES methods for solving a linear spa...
In MATLAB®, write a function that creates these vectors and adds them together, thus giving the value of A*x: function y = afun(x) y = [0; x(1:20)] + ... [(10:-1:0)'; (1:10)'].*x + ... [x(2:21); 0]; end (This function is saved as a local function at...