slepc-main 2024-11-15
EPSComputeError
Computes the error (based on the residual norm) associated with the i-th computed eigenpair.
Synopsis
#include "slepceps.h"
PetscErrorCode EPSComputeError(EPS eps,PetscInt i,EPSErrorType type,PetscReal *error)
Collective
Input Parameters
| eps | - the eigensolver context
|
| i | - the solution index
|
| type | - the type of error to compute
|
Output Parameter
Notes
The error can be computed in various ways, all of them based on the residual
norm ||Ax-kBx||_2 where k is the eigenvalue and x is the eigenvector.
See Also
EPSErrorType, EPSSolve(), EPSGetErrorEstimate()
Level
beginner
Location
src/eps/interface/epssolve.c
Examples
src/eps/tutorials/ex1.c
src/eps/tutorials/ex19.c
src/eps/tutorials/ex31.c
Index of all EPS routines
Table of Contents for all manual pages
Index of all manual pages