slepc-3.22.1 2024-10-28
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# EPSConvergenceTestFn

A prototype of an EPS convergence test function that would be passed to EPSSetConvergenceTestFunction()

### Synopsis

    PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(EPSConvergenceTestFn)(EPS eps,PetscScalar eigr,PetscScalar eigi,PetscReal res,PetscReal *errest,void *ctx);

### Calling Sequence

| eps | - eigensolver context obtained from EPSCreate()
| eigr | - real part of the eigenvalue
| eigi | - imaginary part of the eigenvalue
| res | - residual norm associated to the eigenpair
| errest | - [output] computed error estimate
| ctx | - [optional] user-defined context for private data for the convergence test routine (may be NULL)

### See Also

EPSSetConvergenceTestFunction()

### Level

advanced

### Location

include/slepceps.h
Index of all EPS routines
Table of Contents for all manual pages
Index of all manual pages