This initial release of DGCV has the package's core classes and functions, providing fully featured representations of basic objects from differential geometry integrated with an internally standardized framework for tracking complex variables-related structures across mathematical objects as they are created and transformed. The core classes and functions are broadly relevant for all areas of differential geometry. This initial release has several ancillary functions and classes providing tools for specialized topics within DG, and the ancillary modules are in varying states of development.
—subs() behavior with AlgebraElement class was updated.