EPSGetEigenvectorLeft

Gets the i-th left eigenvector as computed by EPSSolve() (only available in two-sided eigensolvers).

Synopsis

#include "slepceps.h" 
PetscErrorCode EPSGetEigenvectorLeft(EPS eps, PetscInt i, Vec Wr, Vec Wi)
Not Collective, but vectors are shared by all processors that share the EPS

Input Parameters

eps - eigensolver context
i - index of the solution

Output Parameters

Wr - real part of eigenvector
Wi - imaginary part of eigenvector

Notes

If the corresponding eigenvalue is real, then Wi is set to zero. If PETSc is configured with complex scalars the eigenvector is stored directly in Wr (Wi is set to zero).

The index i should be a value between 0 and nconv-1 (see EPSGetConverged()). Eigenpairs are indexed according to the ordering criterion established with EPSSetWhichEigenpairs().

See Also

EPSSolve(), EPSGetConverged(), EPSSetWhichEigenpairs(),
EPSGetEigenpair(), EPSGetEigenvector()

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