Find centralized, trusted content and collaborate around the technologies you use most.
Teams
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
有人可以推荐一种可以用来解决密集非对称线性系统的好的迭代方法吗?
据我了解,双共轭梯度法收敛不规则且不稳定。
也许试试GMRES。它需要存储中间残差并对它们进行正交化,因此存储随着迭代而增长。这样就避免了CG在迭代中累积数值误差的问题。