slepc-3.19.2 2023-09-05
   
PEPComputeError
Computes the error (based on the residual norm) associated with the i-th computed eigenpair. 
Synopsis
#include "slepcpep.h" 
PetscErrorCode PEPComputeError(PEP pep,PetscInt i,PEPErrorType type,PetscReal *error)
Collective
Input Parameters
|  | pep | - the polynomial 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 ||P(l)x||_2 where l is the eigenvalue and x is the eigenvector.
See the users guide for additional details.
See Also
 PEPErrorType, PEPSolve(), PEPGetErrorEstimate()
Level
beginner
Location
src/pep/interface/pepsolve.c
Examples
src/pep/tutorials/ex16.c
Index of all PEP routines
Table of Contents for all manual pages
Index of all manual pages