PEPGetErrorEstimate — SLEPc 3.24.3 documentation

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# PEPGetErrorEstimate

Returns the error estimate associated to the `i`-th computed eigenpair.

## Synopsis

    #include "slepcpep.h"
    PetscErrorCode PEPGetErrorEstimate(PEP pep,PetscInt i,PetscReal *errest)

Not Collective

## Input Parameters

- pep - the polynomial eigensolver context

- i - index of eigenpair

## Output Parameter

- errest - the error estimate

## Note

This is the error estimate used internally by the eigensolver. The actual error bound can be computed with `PEPComputeError()`.

## See Also

PEP: Polynomial Eigenvalue Problems, `PEPComputeError()`

## Level

advanced

## Location

src/pep/interface/pepsolve.c

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