Hi sage-devel,
Our current polynomial implementation has severe issues:
- Our speed for GF(2^e)[x] is abysmal.
- For other cases we are probably not linking to the currently fastest
libraries.
- We don't have multi-point evaluation or fast Lagrange interpolation,
even though the libraries we link to often have this.
- Bruno Grenet remarked at SD75 that there were issues and lots of
crufted code in the class structure handling generic/specific and
dense/sparse/etc. polynomials.
- Jeroen Demeyer remarked that the Cython code is from the prehistoric
era and has lots of cruft from back when Cython was a lot more
primitive than it is now.
- add more things yourself.
Considering how central polynomial arithmetic is in many parts of
algebra, I think this is bad, and it impedes gradual improvement (e.g. I
am at a loss on how to improve the GF(2^e)[x] thing which is my personal
main itch).
I would be interested in co-mentoring such a GSoC project for improving
this. But I lack understanding of, especially Cython and linking. I
would like to know if someone else would be a co-mentor with me on this,
or technical advisor on e.g. Cython issues.
Best,
Johan
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