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From 27 Nov 2021 to 26 Dec 2021

21 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

20 Dec 2021

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

10 Dec 2021

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

09 Dec 2021

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

07 Dec 2021

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

06 Dec 2021

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

01 Dec 2021

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
 

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