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.
| Beginner - Basic usage | RG | RGIsTrivial | RGView |
| RGCreate | RGSetFromOptions | |
| RGDestroy | RGType | |
| Intermediate - Setting options for algorithms and data structures | RGCheckInside | RGGetComplement | RGSetType |
| RGComputeBoundingBox | RGGetType | RGViewFromOptions |
| RGComputeContour | RGIsAxisymmetric | |
| RGComputeQuadrature | RGSetComplement | |
| Advanced - Setting more advanced options and customization | RGAppendOptionsPrefix | RGIntervalSetEndpoints | RGRingGetParameters |
| RGEllipseGetParameters | RGPolygonGetVertices | RGRingSetParameters |
| RGEllipseSetParameters | RGPolygonSetVertices | RGSetOptionsPrefix |
| RGGetOptionsPrefix | RGQuadRule | RGSetScale |
| RGGetScale | RGRegister | |
| RGIntervalGetEndpoints | RGRegisterAll | |
| Developer - Interfaces intended primarily for library developers, not for typical applications programmers | RGCanUseConjugates | RGInitializePackage | RGPushScale |
| RGFinalizePackage | RGPopScale | |
| No deprecated routines | ||