CoCoA » CoCoALib

13 Mar 2023

22:03 Design #1716: Qn: factor for BigInt

It is now possible to impose a timeout.
John Abbott

22:02 Design #950 (Closed): factor and SmoothFactor for integers --> FactorINT, FactorINT_TrialDiv, FactorINT_PollardRho

The current impl is good enough for most purposes.
Some factors may be reducible if PollardRho is used.
Too bad.
C... John Abbott

21:57 Design #1346: C++14: use the new for loop syntax where appropriate (like cocoa's foreach)

This is a mind-numbing task.
Something weird in *@SparsePolyOps-reduce.C@*:
the obvious transformation of the code ... John Abbott

21:50 Bug #1712 (Closed): Windows: New configuration script

Yes, this can be closed and the Qt-Gui already has its own issue: #1713 Nico Mexis

18:31 Bug #1712: Windows: New configuration script

Can we close this issue?
Maybe make a new issue with details about the Qt GUI problem?
John Abbott

19:01 Design #1727 (New): Cruft in ExtLibs-Normaliz.C

@ExtLibs-Nrmaliz.C@ contains quite a lot of commented out code.
Can it be deleted? Or is it an incomplete extension?
John Abbott

12 Mar 2023

18:04 Bug #1662: txt2tags: problem with filenames containing "_" or "-"

About a year ago, I created a PR on their repo (https://github.com/txt2tags/txt2tags/pull/244) targeting the v2 branc... Nico Mexis

11 Mar 2023

12:29 Design #1628: Unused variables, params, data members

Several functions have an unused parameter @CheckForTimeout@.
It would be nice to activate the time-out for these fn... John Abbott

10 Mar 2023

19:17 Design #855: Copyright and authorship?

John Abbott wrote:
> I think we can close this.
> The code by Arri is destined to be removed before too long (and n... Anna Maria Bigatti

17:48 Feature #718 (Resolved): Insert calls to CheckForInterrupt

I do this whenever I encounter a case which is not yet covered.
I think most cases are now covered. Hence 90%. But... John Abbott

17:46 Slug #1557 (Closed): Reading list of rationals is too slow

This is not so important. Yes, it is strange that CoCoA-5 can read the input so fast... but it is not important.
John Abbott

09 Mar 2023

22:37 Bug #1719 (Feedback): FactorINT has got worse

The current code works a lot better.
I suppose I should find time sooner or later to *implement the idea in comment ... John Abbott

22:25 Feature #1488: BuiltIn Interreduce-Function

*Anna?*
John Abbott

22:23 Design #1689 (Closed): Automatic mapping of RHS in += etc

John Abbott

22:15 Feature #800 (Closed): PPMonoidSparse: impl of sparse PPs

It make sense to close this issue, and let issue #842 deal with the disappointing execution speed.
John Abbott

22:11 Support #1265 (Resolved): Unregistered TXT files in doc

The only remaining case is *@SparsePolyOps.txt@* which is almost empty...
*BUT* there are several other files *@Spar... John Abbott

22:01 Support #26: Redmine Administration

*Anna:* could you produce a short user-guide for redmine.
I think it will be useful for both of us!
Not sure where... John Abbott

21:58 Bug #536 (Closed): Make RingBase::myCharacteristic a fn rather than a proc

John Abbott

21:57 Feature #253 (Resolved): W.Bruns's wish list

Shall we close this very old issue? Most of its children have been completed.
John Abbott

21:53 Design #855: Copyright and authorship?

I think we can close this.
The code by Arri is destined to be removed before too long (and no one is maintaining it)... John Abbott

21:50 Bug #1522 (Closed): SEGV: avoid long linked lists of loaves in MemPools

John Abbott

21:48 Feature #1694 (Closed): New expv/exponents function?

I have cleaned up all calls which I think needed cleaning.
*Observation:* I thought it was odd that @exponents(exp... John Abbott

21:07 Bug #1712: Windows: New configuration script

Thanks for the update! Yes, I will be able to compile it whenever you want.
I will also try to remove the limitation... Nico Mexis

20:55 Bug #1712: Windows: New configuration script

We are hoping to make a new official release in the next few days (probably early next week).
*@Nico:* Will you be a... John Abbott

20:49 Bug #1725 (Closed): resultant: gives wrong answer when should be 0

I have some doubts about correct @SubresultanSeq@ is... it seemed to contain a 0 for one test input (now forgotten).
... John Abbott

20:16 Bug #1726 (In Progress): Dangling references to temporaries

I am still perplexed by these warnings. I'm pretty sure the code is safe: all it is doing is giving a convenient sho... John Abbott

09:43 Bug #1726: Dangling references to temporaries

Thanks for letting us know! We are about to release a new version of CoCoA... hopefully tomorrow or early next week.... John Abbott

08 Mar 2023

21:57 Bug #1726 (Closed): Dangling references to temporaries

The Fedora Linux project has built all packages with GCC 13, which will be released soon. I see warnings of this for... Jerry James

21:37 Bug #1522 (Feedback): SEGV: avoid long linked lists of loaves in MemPools

I'm not convinced the test in comment 12 is really a good test.
Anyway, i have reproduced results which suggest that... John Abbott

21:13 Slug #1337 (In Progress): PrimaryDecomposition: a interesting/pathological example

2023-03-08 I have just run the example (on my current GNU/Linux box).
The times are: 0.33s and 499s (ouch! slow... John Abbott

20:52 Design #1689 (In Progress): Automatic mapping of RHS in += etc

The current impl gives an error if the LHS would be promoted.
I am inclined to accept this impl, and close this issu... John Abbott

20:29 Bug #536 (Feedback): Make RingBase::myCharacteristic a fn rather than a proc

I have made the change. I really cannot see a sane use-case where @characteristic@ needs to be super efficient.
I h... John Abbott

19:48 Bug #1662: txt2tags: problem with filenames containing "_" or "-"

What is the status of this issue? Is it advanced enough that we can close this week? (I hope so)
John Abbott

19:44 Support #59: List of all functions in CoCoALib

I think the documentation for CoCoALib needs a major overhaul...
Something similar to what we have made for CoCoA-5 ... John Abbott

07 Mar 2023

21:00 Feature #1360 (Closed): configure script: add flags for "only cocoalib" or "both cocoalib and cocoa5" (for boost)

I'm closing this issue -- I think it has become too long (20 comments).
The current @configure@ script is definitely... John Abbott

20:55 Bug #1710 (Closed): IsSqFree, IsIrred bugs in ZZ[x] and QQ[x]

John Abbott

20:54 Feature #1694: New expv/exponents function?

Let's discuss this issue. I hope we can close it this week!
John Abbott

20:51 Support #1265: Unregistered TXT files in doc

Let's discuss this issue. I hope we can resolve it this week.
John Abbott

20:49 Support #1263: Tidy CoCoALib test directory

It would be nice to close this issue... I have decided to postpone it, since it likely requires some discussion.
I... John Abbott

20:38 Design #1572: Use noexcept

Postponing to have more time to discuss & think; also there is not enough time to make the checks implied by the last... John Abbott

20:36 Design #1572: Use noexcept

*Point 1*
As in the previous comment: for fns which use @CoCoA_ASSERT@ we can now write something like... John Abbott

20:27 Feature #1723 (Closed): New fn CoprimePart, OddPart: naming question

John Abbott

06 Mar 2023

22:41 Bug #1710: IsSqFree, IsIrred bugs in ZZ[x] and QQ[x]

I have now extended *@IsCoprime@* so that it covers integers and ring elems,and a mixture of the two.
Added tests, a... John Abbott

20:56 Feature #1723: New fn CoprimePart, OddPart: naming question

I have added _b-free part_ as a keyword (or similar).
The fn name I have kept as @CoprimePart@, as it seems a reason... John Abbott

20:54 Bug #1725: resultant: gives wrong answer when should be 0

Now I think I have really fixed it!
Also added an exbugs test.
Will check in shortly.
John Abbott

05 Mar 2023

20:15 Bug #1725 (Resolved): resultant: gives wrong answer when should be 0

I have now fixed it. Will add a new exbugs test, and check in.
John Abbott

20:14 Bug #1725 (Closed): resultant: gives wrong answer when should be 0

Here is a smaple input (in CoCoA-5):... John Abbott

18:52 Design #1572: Use noexcept

I have just modified @configure@ so that it defines the CPP macro *@CoCoA_DEBUG_MODE@*.
This new macro is either *@t... John Abbott

28 Feb 2023

15:19 Feature #1723: New fn CoprimePart, OddPart: naming question

After looking a bit further into this, if ... Nico Mexis

27 Feb 2023

20:48 Feature #1723: New fn CoprimePart, OddPart: naming question

A quick thought I had about that: Two separate functions (or at least a ... Nico Mexis

20:17 Feature #1723: New fn CoprimePart, OddPart: naming question

Oops! I had meant to include Nico Mexis as a watcher for this issue.
I have just added him. Let's see if he has an... John Abbott

20:15 Feature #1723: New fn CoprimePart, OddPart: naming question

Thanks for the feedback!
I must agree that it is probably easier to guess what the fn does if it is called *@Coprime... John Abbott

12:09 Feature #1723: New fn CoprimePart, OddPart: naming question

John Abbott wrote:
> Since I need the fn for something else, I'll proceed with *@CoprimePart@*.
> But I still hope ... Anna Maria Bigatti

20:12 Design #1721 (In Progress): Verbose messages: print level?

I wonder whether the format you propose is too terse, but then making it longer perhaps produces too much output?
No... John Abbott

12:31 Design #1721: Verbose messages: print level?

Proposed look (invented numbers) @[depth:level] space space@... Anna Maria Bigatti

12:15 Design #1721: Verbose messages: print level?

Yes!!! That's a great idea!
It would be impossibile to keep the documentation up to date... and tedious to read.
Anna Maria Bigatti

20 Feb 2023

21:54 Feature #1723 (In Progress): New fn CoprimePart, OddPart: naming question

Since I need the fn for something else, I'll proceed with *@CoprimePart@*.
But I still hope to get feedback, and per... John Abbott

14 Feb 2023

21:20 Design #1721: Verbose messages: print level?

Does anyone have any comments? Better ideas?
John Abbott

21:18 Feature #1723: New fn CoprimePart, OddPart: naming question

I thought of @OddPart@ first (because I needed it somewhere).
Then I found I wanted the more general version, but ha... John Abbott

21:11 Feature #1723 (Closed): New fn CoprimePart, OddPart: naming question

I am considering adding two new functions:
* *@OddPart(N)@* or maybe *@OddFactor(N)@* which returns @N/2^k@ where @... John Abbott