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# Region - RG

The RG package provides a way to define a region of the complex plane. This is used in various eigensolvers to specify where the wanted eigenvalues are located.

Related Users Manual part: RG: Region.

## Beginner - Basic usage

- RG

- RGCreate

- RGDestroy

- RGELLIPSE

- RGGetType

- RGINTERVAL

- RGIsTrivial

- RGPOLYGON

- RGRING

- RGSetFromOptions

- RGSetType

- RGType

- RGView

## Intermediate - Setting options for algorithms and data structures

- RGCheckInside

- RGComputeBoundingBox

- RGComputeContour

- RGGetComplement

- RGGetScale

- RGIsAxisymmetric

- RGSetComplement

- RGSetScale

- RGViewFromOptions

## Advanced - Setting more advanced options and customization

- RGAppendOptionsPrefix

- RGComputeQuadrature

- RGEllipseGetParameters

- RGEllipseSetParameters

- RGGetOptionsPrefix

- RGIntervalGetEndpoints

- RGIntervalSetEndpoints

- RGPolygonGetVertices

- RGPolygonSetVertices

- RGQuadRule

- RGRegister

- RGRegisterAll

- RGRingGetParameters

- RGRingSetParameters

- RGSetOptionsPrefix

- RG_QUADRULE_CHEBYSHEV

- RG_QUADRULE_TRAPEZOIDAL

## Developer - Interfaces rarely needed by applications programmers

- RGCanUseConjugates

- RGFinalizePackage

- RGInitializePackage

- RGPopScale

- RGPushScale

## Single list of manual pages

- RG

- RGAppendOptionsPrefix

- RGCanUseConjugates

- RGCheckInside

- RGComputeBoundingBox

- RGComputeContour

- RGComputeQuadrature

- RGCreate

- RGDestroy

- RGELLIPSE

- RGEllipseGetParameters

- RGEllipseSetParameters

- RGFinalizePackage

- RGGetComplement

- RGGetOptionsPrefix

- RGGetScale

- RGGetType

- RGINTERVAL

- RGInitializePackage

- RGIntervalGetEndpoints

- RGIntervalSetEndpoints

- RGIsAxisymmetric

- RGIsTrivial

- RGPOLYGON

- RGPolygonGetVertices

- RGPolygonSetVertices

- RGPopScale

- RGPushScale

- RGQuadRule

- RGRING

- RGRegister

- RGRegisterAll

- RGRingGetParameters

- RGRingSetParameters

- RGSetComplement

- RGSetFromOptions

- RGSetOptionsPrefix

- RGSetScale

- RGSetType

- RGType

- RGView

- RGViewFromOptions

- RG_QUADRULE_CHEBYSHEV

- RG_QUADRULE_TRAPEZOIDAL