ProjectedRHSInformationOp¶

class probnum.linalg.solvers.information_ops.ProjectedRHSInformationOp

Projected right hand side $$s_i \mapsto b^\top s_i = (Ax)^\top s_i$$ of the linear system.

Obtain information about a linear system by projecting the right hand side $$b=Ax$$ onto a given action $$s_i$$ resulting in $$y_i = s_i^\top b$$.

Methods Summary

 __call__(solver_state) Projected right hand side $$s_i^\top b = s_i^\top Ax$$ of the linear system.

Methods Documentation

__call__(solver_state)[source]

Projected right hand side $$s_i^\top b = s_i^\top Ax$$ of the linear system.

Parameters

solver_state (LinearSolverState) – Current state of the linear solver.

Return type

ndarray