ProjectedResidualInformationOp¶
- class probnum.linalg.solvers.information_ops.ProjectedResidualInformationOp¶
Bases:
LinearSolverInformationOpProjected residual information operator.
Obtain information about a linear system by projecting the residual \(b-Ax_{i-1}\) onto a given action \(s_i\) resulting in \(s_i \mapsto s_i^\top r_{i-1} = s_i^\top (b - A x_{i-1}) = s_i^\top A (x - x_{i-1})\).
Methods Summary
__call__(solver_state)Projected residual \(s_i^\top r_{i-1} = s_i^\top (b - A x_{i-1})\) of the linear system.
Methods Documentation
- __call__(solver_state)[source]¶
Projected residual \(s_i^\top r_{i-1} = s_i^\top (b - A x_{i-1})\) of the linear system.
- Parameters
solver_state (LinearSolverState) – Current state of the linear solver.
- Return type