slepc-3.10.1 2018-10-23
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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 on EPS

Input Parameter

eps  - the eigensolver context
i  - the solution index
type  - the type of error to compute

Output Parameter

error  - the error

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()

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

Examples

src/eps/examples/tutorials/ex1.c.html
src/eps/examples/tutorials/ex19.c.html
src/eps/examples/tutorials/ex31.c.html
src/eps/examples/tutorials/ex1f.F.html