TFQMR
TFQMR, which stands for Two-Fractional Quasi-Minimum Residual method, is a numerical algorithm used for solving large sparse systems of linear equations. It is an iterative method, meaning it generates a sequence of approximate solutions that ideally converge to the true solution. TFQMR is particularly well-suited for solving non-symmetric linear systems, which often arise in various scientific and engineering applications like computational fluid dynamics and structural analysis.
The algorithm is based on the minimum residual principle, aiming to minimize the norm of the residual
While TFQMR can be effective, its performance can depend on the properties of the coefficient matrix. For