Towards v3.0

[dkarrasch]

We have currently two PRs in the pipeline that are breaking and therefore require a major release. So I thought we should collect ideas on what to put in there to not have major release every month or so. Clearly, we will have

• Left vector multiply #100

• Get rid of A*_mul_B! #97

Furthermore, I'd suggest to include

• Introduce specific show methods, add Base.parent overload #87 with the new show methods (I guess the only way to really get a feeling for whether it's good or not is to start using it and collect "annoyed" feedback, otherwise I feel this is too distant to form an opinion just by reviewing the PR)
• a nice Documenter documentation, which then could nicely address Relation to other libraries #98 (That shouldn't be too hard: I'm planning to mainly cut our long README into more digestible pieces as a first approach.)

Anything else? Of course, if some hot PR comes in, there's nothing that stops us from merging it and releasing another v2.x. I'd hope to finish this some time in late August/early September. Any contributions/PRs/suggestions are more than welcome.

Have a good (rest of the) summer everyone!

EDIT:

• I think we should relax the type of the output variable in the mul!s to AbstractVecOrMat. The following works perfectly fine with matrices in LinearAlgebra:

using LinearAlgebra
mul!(rand(5,1), rand(5,5), rand(5))

TODO:

• overhaul by @Jutho
• document how to write custom map types Add documentation on how to define custom maps #111
• document conversion logic (not sure that's of general interest)
• FillMaps

[Jutho]

All for this proposal, I will also try to find some time to review current PRs, and contribute where possible.

[dkarrasch]

Gentle bump. What remains to be done is to decide if we want the constructor LinearMap(::Number, m, n) for FillMaps (or whether this is too close to UniformScaling-like maps) and a potential overhaul. I should add that the package is now basically 100% tested, so we might have a performance-oriented overhaul after we release v3.0.