SAGE 9.8

What's new in this version:

Fixed:
- rename .rational_reconstruct() to .rational_reconstruction() for consistency
- Uniformize the API to compute the inverse of an element
- stackoverflow in Maxima integral
- Matrix and Components should have a sparse iterator
- Submodules of TensorFreeModule defined by the symmetries of a Components object
- New implementation class FiniteRankDualFreeModule
- Abel-Jacobi map on Riemann surfaces
- Adding upper and lower Bruhat cones of M. Dyer to sage/combinat/root_system/reflection_group_real.py
- k-recursive sequences with inhomogeneities
- Method tikz of polyhedron class can now return an object of type TikzPicture
- GH Actions (docker): Run a job for "make build-local" first, cache image for job "make build"
- 5 doctests failing related to external program octave
- Category of submodules of sage.modules.free_module.FreeModule_ambient_pid
- Add pip packages to conda environments, add missing conda.txt files
- sage fails to factor some easy expressions
- latte_int: ExponentialSubst.h:62:3: error: ISO C++17 does not allow dynamic exception specifications
- Oscar Benjamin, Matthias Koeppe: Update sympy to 1.11.1
- sage.geometry.polyhedron: More # optional - sage.rings.number_field
- Find and uninstall broken installed SPKGs and wheels
- tox -e docker-...-incremental
- Error in comparing two Symbolic Ring elements
- Julian Rüth: Update docker build
- Drop support for GCC < 8 in Sage 9.8
- Sebastian Oehms, Kwankyu Lee: Make feature TeXFile check latex first
- modernize super in crystals and asymptotics
- fix some W391
- pycodestyle cleanup in strongly_regular_db.pyx (part 3)
- fix E251 in schemes
- fix E251 in groups
- fix various suggestions by lgtm
- Method to get cells in horizontal/vertical border strip
- speed up powers of lazy Taylor series
- Implement a hook to access free (graded) resolutions
- add method "tensor_factors" to tensor products
- q-commuting polynomials
- TensorFreeModule.isomorphism_with_fixed_basis
- Add package pyproject_metadata
- sage.tensor: Canonicalize sym, antisym
- Tensor products of commutative algebras do not know they are commutative rings
- fix various linter errors
- fix random doctest failure in EllipticCurveHom_velusqrt
- Make FiniteRankFreeModule.tensor_module(0, 1) return the dual
- pynormaliz: Add distros information for conda, arch
- Methods quotient, quotient_module are not the same for some modules from sage.modules
- Thierry Monteil: `sage --package clean` command to remove outdated source tarballs
- Upgrade igraph to 0.9.10
- better monomials in shuffle algebras
- Construction for invariant/equivariant submodules
- Update igraph, python_igraph to 0.10.x
- using items in indexed_elements.pyx
- Make IndexedFreeModuleElement compatible with collections.abc, change method support to return a SupportView
- Add to check for fixed total/length in IntegerVector
- Incorrect decomposition type for relative number fields
- Fix + extend msolve interface
- Make `Composition`s into a `collections.abc.Sequence`
- Segfault when floor dividing in infinite polynomial ring
- enhance free dendriform algebras
- Documentation: There is no package in debian/ubuntu called openssh
- rename example to QuaternionicProjectivePlane