EPSComputeRelativeErrorLeft

Computes the relative error bound associated with the i-th computed eigenvalue and left eigenvector (only available in two-sided eigensolvers).

Synopsis

#include "slepceps.h" 
PetscErrorCode EPSComputeRelativeErrorLeft(EPS eps, int i, PetscReal *error)
Collective on EPS

Input Parameter

eps - the eigensolver context
i - the solution index

Output Parameter

error - the relative error bound, computed as ||y'A-ky'B||_2/||ky||_2 where k is the eigenvalue and y is the left eigenvector. If k=0 the relative error is computed as ||y'A||_2/||y||_2.

See Also

EPSSolve(), EPSComputeResidualNormLeft(), EPSGetErrorEstimateLeft()

Location: src/eps/interface/solve.c
Index of all EPS routines
Table of Contents for all manual pages
Index of all manual pages