Maybe I'm being stupid, but I don't think the given list of generators is complete. The inverse of a generator is also a generator, so aren't there 8 generators, not 4? (Sorry I couldn't find the PR, to put this comment there.)
On Friday, June 16, 2023 at 2:57:38 AM UTC-6 John Cremona wrote: > I'll review the new PR, though I probably should have seen this problem > arising with the original one. > > John > > On Fri, 16 Jun 2023 at 09:30, Dima Pasechnik <dim...@gmail.com> wrote: > >> You can't reopen PRs, I think, you can certainly reopen issues. >> >> No need to fill in the longish PR boilerplate, just remove it and write >> what it does, mentioning #35626 >> >> >> >> On Fri, 16 Jun 2023, 09:08 chris wuthrich, <christian...@gmail.com> >> wrote: >> >>> I replaced old tests with "random" by new ones with "random" (and forgot >>> these two). Some other tests do check consistency. >>> >>> All that the function really does is converting a pari output back into >>> a point on the elliptic curve. Therefore the test checks if pari runs >>> without error and if the returned is a point on the curve. Checking if it >>> is a generator modulo torsion would be checking if pari gets this right. Is >>> that what we should do? >>> >>> But this discussing should happen on a pull request. I repeat my >>> question: Do I open a new one or is the faulty initial one reopened? (Trac >>> tickets used to be reopened, that is why I ask). >>> >>> Chris >>> >>> On Friday, 16 June 2023 at 01:39:46 UTC+1 tsc...@ucdavis.edu wrote: >>> >>>> I don't think it should be random; that has the chance of hiding actual >>>> bugs. I think we should check that it belongs to a particular set >>>> (specifically, the one from John's comment). >>>> >>>> Best, >>>> Travis >>>> >>>> >>>> On Thursday, June 15, 2023 at 5:15:52 AM UTC+9 chris wuthrich wrote: >>>> >>>>> I agree with John. Lines 2380 and 2388 need a "random output" for that >>>>> reason, like the other calls of that function have already. >>>>> Is this a new pull request or is the old #35626 >>>>> https://github.com/sagemath/sage/pull/35626 opened again for >>>>> corrections? >>>>> >>>>> Chris >>>>> >>>>> On Wednesday, 14 June 2023 at 17:49:21 UTC+1 John Cremona wrote: >>>>> >>>>>> On Tue, 13 Jun 2023 at 17:06, John Cremona <john.c...@gmail.com> >>>>>> wrote: >>>>>> >>>>>>> The elliptic curve failure might be a consequence of the recently >>>>>>> merged PR #35626 about using libpari to compute ranks and generators. >>>>>>> >>>>>>> I'll take a look to at least see if the output you get is >>>>>>> mathematically correct -- generators are not unique. >>>>>>> >>>>>> >>>>>> I was right. This curve has rank 1 and torsion (Z/2Z)^2 so if P is >>>>>> one generator (of infinte order) then there are 3 other, P+T for T a >>>>>> point >>>>>> of order 2. The one your are getting is one of these. >>>>>> >>>>>> So we conclude that we cannot reply on pari always returning the same >>>>>> generator despite random seeds etc being fixed in doctests. I don't >>>>>> know >>>>>> why that is, but if it is the case then this (and other similar) >>>>>> doctests >>>>>> will have to be written accordingly. >>>>>> >>>>>> >>>>>>> >>>>>>> John >>>>>>> >>>>>>> >>>>>>> On Tue, 13 Jun 2023, 17:00 Emmanuel Charpentier, < >>>>>>> emanuel.c...@gmail.com> wrote: >>>>>>> >>>>>>>> On Debian testing running on core i7 + 16 GB RAM, upgrading >>>>>>>> 10.1.beta2 to 10.1.beta3 and rinning ptestlong gives 3 permanent >>>>>>>> failures : >>>>>>>> ---------------------------------------------------------------------- >>>>>>>> sage -t --long --warn-long 207.1 >>>>>>>> --random-seed=291812591553963182024849035945523427319 >>>>>>>> src/sage/schemes/elliptic_curves/ell_rational_field.py # 1 doctest >>>>>>>> failed >>>>>>>> sage -t --long --warn-long 207.1 >>>>>>>> --random-seed=291812591553963182024849035945523427319 >>>>>>>> src/sage/coding/linear_code.py # 2 doctests failed sage -t --long >>>>>>>> --warn-long 207.1 >>>>>>>> --random-seed=291812591553963182024849035945523427319 >>>>>>>> src/sage/coding/code_constructions.py # 1 doctest failed >>>>>>>> ---------------------------------------------------------------------- >>>>>>>> >>>>>>>> The last two have been already reported a few times, and seem >>>>>>>> cosmetic. The first one is new and seemingly *not* cosmetic : >>>>>>>> charpent@zen-book-flip:/usr/local/sage-10$ sage -t --long >>>>>>>> --warn-long 207.1 >>>>>>>> --random-seed=291812591553963182024849035945523427319 >>>>>>>> src/sage/schemes/elliptic_curves/ell_rational_field.py # 1 doctest >>>>>>>> failed >>>>>>>> Running doctests with ID 2023-06-13-17-49-08-8dac2a23. Git branch: >>>>>>>> develop >>>>>>>> Git ref: 10.1.beta0-453-g443b7549ad Running with >>>>>>>> SAGE_LOCAL='/usr/local/sage-10/local' and >>>>>>>> SAGE_VENV='/usr/local/sage-10/local/var/lib/sage/venv-python3.11' >>>>>>>> Using >>>>>>>> --optional=debian,dot2tex,fricas,gap_jupyter,gap_packages,libsemigroups,msolve,pip,pysingular,sage,sage_spkg,singular_jupyter >>>>>>>> >>>>>>>> Features to be detected: >>>>>>>> 4ti2,benzene,bliss,buckygen,conway_polynomials,csdp,cvxopt,cvxopt,database_cremona_ellcurve,database_cremona_mini_ellcurve,database_cubic_hecke,database_jones_numfield,database_knotinfo,dvipng,fpylll,gfan,graphviz,imagemagick,ipython,jupymake,kenzo,latte_int,lrcalc_python,lrslib,mcqd,meataxe,mpmath,msolve,nauty,networkx,numpy,palp,pandoc,pdf2svg,pdftocairo,pexpect,phitigra,pillow,plantri,polytopes_db,polytopes_db_4d,pplpy,primecountpy,ptyprocess,pynormaliz,pyparsing,python_igraph,requests,rubiks,sage.combinat,sage.geometry.polyhedron,sage.graphs,sage.groups,sage.libs.gap,sage.libs.pari,sage.libs.singular,sage.misc.cython,sage.modules,sage.plot,sage.rings.finite_rings,sage.rings.function_field,sage.rings.number_field,sage.rings.padics,sage.rings.real_double,sage.rings.real_mpfr,sage.symbolic,sage_numerical_backends_coin,sagemath_doc_html,scipy,singular,sphinx,sympy,tdlib >>>>>>>> >>>>>>>> Doctesting 1 file. sage -t --long --warn-long 207.1 >>>>>>>> --random-seed=291812591553963182024849035945523427319 >>>>>>>> src/sage/schemes/elliptic_curves/ell_rational_field.py >>>>>>>> ********************************************************************** >>>>>>>> File >>>>>>>> "src/sage/schemes/elliptic_curves/ell_rational_field.py", line 2380, >>>>>>>> in >>>>>>>> sage.schemes.elliptic_curves.ell_rational_field.EllipticCurve_rational_field.? >>>>>>>> >>>>>>>> Failed example: E.gens(use_database=False, >>>>>>>> algorithm="pari",pari_effort=4) >>>>>>>> Expected: [(611429153205013185025/9492121848205441 : >>>>>>>> 15118836457596902442737698070880/924793900700594415341761 : 1)] Got: >>>>>>>> [(-38749202011873484470143/306317326339867638016 : >>>>>>>> 678721624672968530804232808604865/5361142413550167706041194328064 : >>>>>>>> 1)] >>>>>>>> ********************************************************************** >>>>>>>> 1 >>>>>>>> item had failures: 1 of 100 in >>>>>>>> sage.schemes.elliptic_curves.ell_rational_field.EllipticCurve_rational_field.? >>>>>>>> >>>>>>>> [896 tests, 1 failure, 241.41 s] >>>>>>>> ---------------------------------------------------------------------- >>>>>>>> sage >>>>>>>> -t --long --warn-long 207.1 >>>>>>>> --random-seed=291812591553963182024849035945523427319 >>>>>>>> src/sage/schemes/elliptic_curves/ell_rational_field.py # 1 doctest >>>>>>>> failed >>>>>>>> ---------------------------------------------------------------------- >>>>>>>> Total time for all tests: 251.7 seconds cpu time: 227.0 seconds >>>>>>>> cumulative >>>>>>>> wall time: 241.4 seconds Features detected for doctesting: >>>>>>>> sage.rings.finite_rings,sage.rings.number_field >>>>>>>> >>>>>>>> HTH, >>>>>>>> Le dimanche 11 juin 2023 à 13:14:49 UTC+2, Volker Braun a écrit : >>>>>>>> >>>>>>>>> As always, you can get the latest beta version from the "develop" >>>>>>>>> git branch. Alternatively, the self-contained source tarball is at >>>>>>>>> http://www.sagemath.org/download-latest.html >>>>>>>>> >>>>>>>>> 443b7549ad3 (tag: 10.1.beta3, github/develop) Updated SageMath >>>>>>>>> version to 10.1.beta3 >>>>>>>>> 464d3d20aaa gh-35738: configure: Remove stray `stdin.info` file >>>>>>>>> created in test >>>>>>>>> d27b19a4efc gh-35737: build/pkgs/maxima: Fix parallel build >>>>>>>>> 202ccd7ea08 gh-35733: more uses of yield from >>>>>>>>> aba52d4c06a gh-35731: build/pkgs/pyflakes: Remove >>>>>>>>> 5b446283d86 gh-35723: some pep8 cleanup in rigged-configurations >>>>>>>>> e90d6be7a5c gh-35722: cython-lint for imports in libs/ >>>>>>>>> 9c83f604a46 gh-35721: cython-lint for imports in rings (mostly in >>>>>>>>> padics) >>>>>>>>> 5c9ee290848 gh-35720: fix the linter and add more checks >>>>>>>>> 6d1cb7e3323 gh-35718: `sage.graphs`: More modularization >>>>>>>>> a2e4cab86c8 gh-35714: provide matrix_symbolic_sparse class >>>>>>>>> 41aa6c290de gh-35713: update symengine(_py) to versions 0.10.0 and >>>>>>>>> 0.10.1 >>>>>>>>> acac1e60e63 gh-35712: fix pep8 E251 in rings/ >>>>>>>>> 34b4234573c gh-35711: fix all pep8 E251 in combinat >>>>>>>>> 0a929ff9da9 gh-35710: fix pep8 E251 in categories, coding, crypto, >>>>>>>>> logic >>>>>>>>> 6a142317110 gh-35709: some cython-linting in quadratic forms >>>>>>>>> d7bb52abf83 gh-35702: GAP: switch some code to use official libgap >>>>>>>>> APIs >>>>>>>>> afc9232bff4 gh-35692: ⬆️ Bump myrotvorets/set-commit-status-action >>>>>>>>> from 1.1.6 to 1.1.7 >>>>>>>>> 6ca634ae1c0 gh-35671: Upgrade networkx to 3.1, >>>>>>>>> igraph/python_igraph to 0.10.4 >>>>>>>>> 7e0eb1c9219 gh-35666: remove obsolete .zenodo.json* files, update >>>>>>>>> CITATION.cff to fix zenodo/DOI >>>>>>>>> 86d2be056bf gh-35626: Update the rank function of elliptic curves >>>>>>>>> to use ellrank in pari >>>>>>>>> fe931a790a8 gh-35614: allow non-minimal equation for padic heights >>>>>>>>> 5343f2e7ea9 gh-35494: avoid computation of Conway polynomials when >>>>>>>>> comparing elliptic-curve morphisms >>>>>>>>> 2f426a11f4c (tag: 10.1.beta2) Updated SageMath version to >>>>>>>>> 10.1.beta2 >>>>>>>>> >>>>>>>> -- >>>>>>>> You received this message because you are subscribed to the Google >>>>>>>> Groups "sage-release" group. >>>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>>> send an email to sage-release...@googlegroups.com. >>>>>>>> To view this discussion on the web visit >>>>>>>> https://groups.google.com/d/msgid/sage-release/774ed98e-96e3-44bf-b1ad-fe5259d90cb8n%40googlegroups.com >>>>>>>> >>>>>>>> <https://groups.google.com/d/msgid/sage-release/774ed98e-96e3-44bf-b1ad-fe5259d90cb8n%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>>>> . >>>>>>>> >>>>>>> -- >>> You received this message because you are subscribed to the Google >>> Groups "sage-release" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to sage-release...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/sage-release/93736586-2c19-436d-b4c4-e37987123b50n%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/sage-release/93736586-2c19-436d-b4c4-e37987123b50n%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- >> You received this message because you are subscribed to the Google Groups >> "sage-release" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to sage-release...@googlegroups.com. >> > To view this discussion on the web visit >> https://groups.google.com/d/msgid/sage-release/CAAWYfq0XsR0ivtRE95-56bRSLsr8CidNMJjruQzstndeSa3uyA%40mail.gmail.com >> >> <https://groups.google.com/d/msgid/sage-release/CAAWYfq0XsR0ivtRE95-56bRSLsr8CidNMJjruQzstndeSa3uyA%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> > -- You received this message because you are subscribed to the Google Groups "sage-release" group. 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