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