STCG

class kona.linalg.solvers.krylov.STCG(vector_factory, optns=None, dual_factory=None)[source]

Bases: kona.linalg.solvers.krylov.basic.KrylovSolver

Steihaug-Toint Conjugate Gradient (STCG) Krylov iterative method

Variables:
  • radius (float) – Trust region radius.
  • proj_cg (boolean) –
solve(mat_vec, b, x, precond)[source]