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NAGtypes :: DualSpace

DualSpace -- a dual functional vector subspace


This type stores a finite dimensional subspace of the local dual of a polynomial ring at a point. In practice, the subspace is stored as a PolySpace with functionals represented by the corresponding polynomial, along with a Point. The following methods can be used to access a DualSpace:

  • gens -- a one-row matrix of the generators
  • dim -- the number of generators
  • ring -- the ring of the generators
  • point -- the base point of the dual space

See also

Methods that use an object of class DualSpace :

For the programmer

The object DualSpace is a type, with ancestor classes MutableHashTable < HashTable < Thing.