# EPSCISSSetRegion

Sets the parameters defining the region where eigenvalues must be computed.

### Synopsis

    #include "slepceps.h"
    PetscErrorCode EPSCISSSetRegion(EPS eps,PetscScalar center,PetscReal radius,PetscReal vscale)

Logically Collective on EPS

### Input Parameters

| eps | - the eigenproblem solver context
| center | - center of the region
| radius | - radius of the region
| vscale | - vertical scale of the region

### Options Database Keys

| -eps_ciss_center | - Sets the center
| -eps_ciss_radius | - Sets the radius
| -eps_ciss_vscale | - Sets the vertical scale

### See Also

EPSCISSGetRegion()

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