PyPI version 0.0.3.1

Changes since 0.0.2.2

New Features

• Optic functors yarrow.functor.optic
• Numpy-specific diagram layering yarrow.numpy.layer
• New class AbstractIndexedCoproduct, which replaces SegmentedFiniteFunction
• New functions:
  • Diagram.half_spider
  • FiniteFunction.cumsum
  • FiniteFunction.interleave
  • FiniteFunction.cointerleave
• Operations class now implements __len__ and __iter__ for convenience

Refactoring (API-breaking changes)

• Replaced all uses of SegmentedFiniteFunction with IndexedCoproduct
• Move numpy-backed diagrams into yarrow.numpy
• Tidied up yarrow.functor.functor and (documentation)

PyPI version 0.0.2.2

Main changes are one feature and one bugfix:

• Adds Diagram.tensor_list method helper. This is O(n) but doesn't speed up to O(log n) the parallel case. Useful if you don't need to run on the GPU.
• Fix a bug in FrobeniusFunctor which crashed for functors that are not identity-on-objects, and adds a test.

pypi-0.0.2.1

Minor bugfixes:

• Computing the universal map for coequalizers of bipartite multigraphs crashed for non-finite signatures
• pi and pi finite functions of bipartite multigraphs had finite codomains, meaning that coproducts could incorrectly raise an error

Other changes:

• Added a Type value to array backends, corresponding to the underlying array type. For the numpy backend, this is just np.ndarray.
• A slightly stricter constructor for finite functions which passes through the underlying table unchanged if its type is equal to the array backend's Type.

PyPI version 0.0.2

PyPI version 0.0.2 adds the CuPy array backend and proof-of-concept GPU accelerated diagrams.