Activity

From 24 Nov 2021 to 23 Dec 2021

21:56 CoCoALib Design #1642 (In Progress): interreduce: make monic if over finite field?: While working on a Sudoku exercise I noticed that @interreduced@ sometimes return non-monic polynomials: coeff field ... John Abbott

13:43 CoCoALib Bug #1641 (Closed): gcd does not recognize univariate input: Determinants where you would not expect them!... John Abbott

15:54 CoCoA-5 Bug #1640 (Feedback): MinSubsetOfGens does not find min subset: Anna Maria Bigatti
15:53 CoCoA-5 Bug #1640: MinSubsetOfGens does not find min subset: During skype meeting, we implemented an improvement (discarding longest polynomial first). Now the given example is ... Anna Maria Bigatti

10:27 CoCoA-5 Bug #1640: MinSubsetOfGens does not find min subset: John Abbott wrote:
> I have now re-read the manual, and understood what it was trying to say.
> Maybe re-write the ... Anna Maria Bigatti

00:11 CoCoA-5 Bug #1640: MinSubsetOfGens does not find min subset: I have now re-read the manual, and understood what it was trying to say.
Maybe re-write the manual entry to make it ... John Abbott
00:09 CoCoA-5 Bug #1640: MinSubsetOfGens does not find min subset: I had wanted to show @MinSubsetOfGens@ to my students, but maybe it is better not to do so.
The code is weird; I a... John Abbott
00:08 CoCoA-5 Bug #1640 (Closed): MinSubsetOfGens does not find min subset: Not sure what @MinSubsetOfGens@ does, but it does not find a min card subset of the gens which generate the same idea... John Abbott
20:26 CoCoA-5 Bug #1639: RealRoots: crashes after interrupting: I still get a crash with @product([x-k | k in 0..600])@ and interrupting after about 20s.
Trying with 500 instead of... John Abbott
17:49 CoCoA-5 Bug #1639 (New): RealRoots: crashes after interrupting: Naturally I discovered this while giving a demo to my students...... John Abbott

20:37 CoCoA-5 Slug #1638: MinSubsetOfGens sometimes very slow: There are only 256 subsets to try; and some can be quickly eliminated.
I saw the source, and understand that it is n... John Abbott
20:35 CoCoA-5 Slug #1638 (New): MinSubsetOfGens sometimes very slow: I have just tried @MinSubsetOfGens@, and was surprised how slow it was on a small example.... John Abbott

14:49 CoCoALib Feature #1637 (New): Intersection of Ideals: has GBasis?: When one computes the intersection of two ideals, are the resulting generators a GBasis?
Sometimes they are: can we ... John Abbott

18:48 CoCoA-5 Bug #1104: Eigenvectors: inconsistent return type: Here is an observation about the given example:
* in the case that the eigenvalue is rational (_i.e._ in the field),... John Abbott
18:44 CoCoA-5 Slug #1629: RingElem slow with many indets: Anna implemented a quick fix: it was much faster, but would also sometimes give a wrong answer (we understood why).
... John Abbott
15:29 CoCoA-5 Slug #1629: RingElem slow with many indets: After a common investigation via skype, we noticed that @ReadExpr@ (called by RingElem) creates @map<symbol, RingElem... Anna Maria Bigatti
15:03 CoCoA-5 Slug #1629 (In Progress): RingElem slow with many indets: Simpler test:... John Abbott
17:10 CoCoALib Support #262: Play with GIT: Does anyone have useful experience to help decide between Github/Gitlab/other? And also how one goes about in practice? John Abbott
17:08 CoCoALib Support #262: Play with GIT: Florian and Bernhard suggest putting the source on Github/Gitlab.
John Abbott

17:13 CoCoA-5 Support #1636 (In Progress): Missing/Incomplete manual entries: Some entries in the online manual are missing or very incomplete.... John Abbott
16:47 CoCoALib Feature #1635 (In Progress): NR for polys with coeffs in PID: Make @NR@ work also polys with coeffs in a PID (at least in @ZZ@).
This is a stepping stone to GBasis over @ZZ@. John Abbott

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