Activity
From 05 Feb 2024 to 05 Mar 2024
01 Mar 2024
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18:40 CoCoALib Slug #1569 (Closed): IsInRadical too slow (test-RadicalMembership)
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- Anna Maria Bigatti wrote:
> Implement special version for monomial ideals
Moved to issue #1786 -
- Anna Maria Bigatti wrote:
> There is a slow test in test-RadicalMembership1 which is slower than the others and ver... -
- There is a slow test in test-RadicalMembership1 which is slower than the others and very slow with debugging on (20m...
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- A monomial version could be quite a bit faster than the general code.
But is this really needed?
Consider calling @... -
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- John Abbott wrote:
> Could it be useful to have also *@IsHomog3(I)@* which returns a @bool3@?
it could be handy t... -
- Anna Maria Bigatti wrote:
> check if there is a "homog" flag to be set
The answer is "no" (#1784). -
- See implementation of @IsHomog(I)@ in @SparsePolyOps-ideal.C@ (and #1739)
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- Should we have a "quick" bool3 function (i.e. might return @uncertain@) saying if an ideal is homogeneous?
Useful? -
- We already have...
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09:44 CoCoALib Support #1782: Make CoCoALib test file for radical
- Can we (= Anna) do this quickly ready for next interim release?
29 Feb 2024
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- CoCoALib now seems to compile without too many hiccups... Will check in shortly.
Not yet tried CoCoA-5
28 Feb 2024
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- Aha! The examples with @wrong output@ are *all examples* which are expected to produce output.
There are two like... -
- I have now changed all messages in the checking scripts so that they specify the full path when referring to @LogFile...
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- I'm hoping to sort this out soon... ideally by tomorrow (ha ha!). It seems I've forgotten username/password (sigh). ...
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- It'd be nice if there were a clean answer to this question, but it is also quite unimportant.
I don't recall ever ha... -
- A possibly related curiosity is that when one exits the GUI by typing in *@ciao;@* it is necessary to dismiss a smal...
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- I have added Uli as a watcher in case he happens to have an idea how to resolve this... he seems to be a Qt magician ...
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- The problem persists, but the error message is less alarming now:...
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- This is apparently a duplicate of #611, so I shall close this issue.
25 Feb 2024
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20:42 CoCoA-5 Bug #1713: Windows: Qt-Gui does not link correctly
- I can confirm that adding ...
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- It seems to have worked on my laptop (Ubuntu). I'll do a few more checks, but hope to include the change in the next...
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- Thanks Ulrich! There's a lot I do not know about Qt (and many other things too). I hope to try out your suggestion...
24 Feb 2024
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21:00 CoCoA-5 Bug #1713: Windows: Qt-Gui does not link correctly
- John Abbott wrote:
> Partial success: compilation succeeded, but attempting to run the resulting executable produced... -
- A brief phone discussion with Anna yesterday suggested a vague preference for many-small-files.
But no genuine reaso... -
- Thoughts about one-big-file vs many-small-files:
For source code:
* ASSUME many-small-files means many header fil... -
- I'd like to discuss briefly the pros & cons of many-small-files and one-big-file. Currently the CoCoALib code is a m...
23 Feb 2024
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- Anna Maria Bigatti wrote:
> Still to do: check other cases.
I cannot remember what I meant.
Now seems pretty goo... -
- Implement special version for monomial ideals
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- Anna Maria Bigatti wrote:
> there is a new problem (in test-exbugs.C).
> [...]
Fixed, it was an "off-by-one" err... -
- there is a new problem (in test-exbugs.C)....
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- I made a new issue for implementing and running the tests.
Closing this one ... hoping non errors will come from the... -
- *ANNA* will test this over the next week :-)
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- There is a file with some CoCoALib tests for radical in a funny format.
Clean it up. -
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19 Feb 2024
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- Winfried sent me the following message by email:...
17 Feb 2024
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- These differences between the linkers on Windows and Linux are really unfortunate sometimes...
In that case, I would... -
- Partial success: compilation succeeded, but attempting to run the resulting executable produced an error *@Cannot fin...
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- Great! Thanks for sorting this out. I shall test it (on Linux) shortly -- let's hope it works!
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- I have updated my documentation file. Actually, only three CygWin packages are needed in order to successfully build ...
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- I did not give up that easily on this issue: Today, I was finally able to compile the Qt5-Gui on Windows!
Recently, ...
16 Feb 2024
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- Assuming we do implement this, what should its UI be?
Do we already have a function which converts from @SparsePolyR... -
- I have just tried disabling the checks inside *@PushFront@* and *@PushBack@*. There was no difference when calling @...
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- Surely worth a try.
@PushFront_nocheck@?
I could imagine cases when this might be used (homomorphisms preserving or... -
- As I stated in the comment just above: I should test whether a non-checking impl would really make it faster. Maybe ...
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- Ah, thanks for making me aware of this issue. Actually, recently I put my instructions online for exactly that.
I ha... -
- I have added Nico Mexis as a watcher. He has successfully built CoCoA-5 for Microsoft, so may have some useful insig...
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- Here are some posibly useful links: (I searched for *@libtool tutorial@*
* @https://stackoverflow.com/questions/446... -
- I have confirmed that Anna's 0-dim check makes it much faster. I have added a link to issue #1103 which is about pse...
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- John Abbott wrote:
> As far as I can see *@MinPowerInIdeal@* is already implemented, using the method Anna described... -
- I have made a first impl. Anna is sceptical, partly because the code behaves differently depending on the coefficien...
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- The source code seems to be in *@SparsePolyOps-vector.C@* around line 32.
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- John Abbott wrote:
> Would we also want to have @interreduced@ work when the coeff ring is @ZZ@?
Not until someon... -
- Would we also want to have @interreduced@ work when the coeff ring is @ZZ@?
If so, we need to think about the semant... -
- In 8 years we have never really needed the proposed new API, so we may as well *reject* this issue (as Anna suggested...
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- The syntax should be compatible with whatever we use for @ElimMat@, I presume.
Well, there is an important differenc... -
- No longer needed because @ideal(zero(R))@ now gives ideal in R with no generators.
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- check if there is a "homog" flag to be set
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- We have auto mapping in many places without any real problems.
If the user disables auto mapping then this may cause... -
- Try...
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- While it can be difficult to say much positive about Julia, it does offer a convenient way of using "iterators" (and ...
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- There are a few functions whose name has a suffix like *@_NoArgChecks@*.
OK, a quick grep produces just one such pub... -
- Here is a list of features it would be nice to offer in the CoCoALib documentation:
* cross-references (xrefs)
* sm... -
- What is the status of this issue? How much did we achieve?
15 Feb 2024
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- As far as I can see *@MinPowerInIdeal@* is already implemented, using the method Anna described above.
See near line... -
- John Abbott wrote:
> The "stupid approach" gets the answer in 10s (on my Linux laptop).
Even faster like this.
<... -
- Fixed the sum I + ideal(1)
Added check also for I + ideal(x, x-1) (when ideal @HasGBasis@)...
09 Feb 2024
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- John Abbott wrote:
> After brief consideration, I have decided to keep in this issue discussion related to what "cle... -
- I remind you of the function *@IsConstant@* which should be helpful in this case (if IsField(CoeffRing)).
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- John Abbott wrote:
> Here is an example where the resulting gens could clearly be cleaned up:
> [...]
This is st... -
- OK to require that input to *@syz@* are all non-zero.
Also OK for a new fn which accepts zero -- not sure how this s... -
- Should we make @SyzOfGens@ obsolescent? does it do anything more than calling @syz(gens(I))@?
(apart from fixing th... -
- This is my suggestion: implement a new function @syz0@ which allows 0s in the input (giving them conventional weights...
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- Currently we have decided to forbid generator 0 in ideals (#1647), so @SyzOfGens@ will never find a 0, keeping in min...
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- fixed and checked in.
@GenReprCompute@ used @SyzOfGens(ideal(concat([A], [ f in GensB | not(IsZero(f)) ])))@ which, ... -
- I get the same error with...
08 Feb 2024
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- I have implemented @homogenizer@ in OSCAR, and am happy with the interface it gives. Also some others are using it, ...
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- I have just sync'ed with CVS, and @CoCoA5/tests/tut-CoCoLA3@ gives **SERIOUS ERROR**
Oops! Too late to invesigate... -
- What is the status of this issue? With luck we can soon close it!
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- I have now added a first impl of *@TupleIter@* following the idea behind @SubsetIter@, _i.e._ the tuples are from the...
07 Feb 2024
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- Modified ...
06 Feb 2024
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- Anna Maria Bigatti wrote:
> John Abbott wrote:
> > It would be easy to allow the factorize to return a result if th... -
- John Abbott wrote:
> It would be easy to allow the factorize to return a result if the input is a non-zero constant.... -
- Now the test from #1390 is fast (in C++), so I re-activated it.
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- Anna Maria Bigatti wrote:
> It should all go through @myTestIsRadical@, ... and now it isn't (I had forced the funct... -
- The package was first translated by Alice Moallemy, then fixed by Nicolas Jagersma (2023).
Now it's been officially ... -
- Port the code from the CoCoa-5 package radical.cpkg5 into CoCoALib
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- Should we also have that @ideal(zero(R))@ has empty list of generators?
I think so.
And that would be handy, if we ...
05 Feb 2024
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- It would be easy to allow the factorize to return a result if the input is a non-zero constant.
I suppose I made it ... -
- first bug fixed.
New bug:... -
- This problem resurfaced now that radical is in C++....
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- Fixed. Now checking if gens are monomial, then if gens are homogeneous....
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