Which of these methods is not restricted to symmetric positive definite matrices?(a) The method of steepest descent(b) Conjugate gradient method(c) Bi-conjugate gradient method(d) Gauss-Seidel methodThe question was posed to me in homework.My question comes from Numerical Methods in chapter Numerical Methods of Computational Fluid Dynamics

Which of these methods is not restricted to symmetric positive definit

1.	Which of these methods is not restricted to symmetric positive definite matrices?(a) The method of steepest descent(b) Conjugate gradient method(c) Bi-conjugate gradient method(d) Gauss-Seidel methodThe question was posed to me in homework.My question comes from Numerical Methods in chapter Numerical Methods of Computational Fluid Dynamics
Answer» Right option is (d) Gauss-Seidel method To explain I would SAY: The GRADIENT ITERATIVE solvers are restricted to SYMMETRIC positive definite matrices. The gradient methods are: The method of Steepest descent Conjugate gradient method Bi-conjugate gradient method Preconditioned bi-conjugate gradient method.

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