slepc-3.17.1 2022-04-11
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NEPComputeError

Computes the error (based on the residual norm) associated with the i-th computed eigenpair.

Synopsis

#include "slepcnep.h" 
PetscErrorCode NEPComputeError(NEP nep,PetscInt i,NEPErrorType type,PetscReal *error)
Collective on nep

Input Parameters

nep  - the nonlinear 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 computed as ||T(lambda)x||_2 where lambda is the eigenvalue and x is the eigenvector.

See Also

NEPErrorType, NEPSolve(), NEPGetErrorEstimate()

Location: src/nep/interface/nepsolve.c

Examples

src/nep/tutorials/ex20.c.html
src/nep/tutorials/ex20f90.F90.html

Index of all NEP routines
Table of Contents for all manual pages
Index of all manual pages