| Boundary | Namespace for rectangles and other 2D shapes, including bounding regions | 
  | Bounded | Namespace for types with well-specified bounds, either enforced or nominal | 
  | Generic | Namespace for generic algorithms not assuming any particular datatype | 
  | mat | Generic routines operating on matrices | 
  | Msg | Namespace for general-purpose messaging | 
  | mtl | Namespace for the Matrix Template Library | 
  | Plot | Namespace for image plotting functions | 
  | RadialFunction | This family of generic routines return the value of a mathematical function parameterized by a sigma (half-width), evaluated at a given radius | 
  | Scale | Namespace for scaling functions or objects, e.g | 
  | SequenceTransform | Namespace for class hierarchies of function objects transforming sequences into new ones | 
  | String | General-purpose string utility functions | 
  | TNT | Namespace for the Template Numeric Toolkit | 
  | vec | Namespace for generic routines operating on vectors; this helps avoid overloading ambiguities |