Activity
From 06 May 2024 to 04 Jun 2024
31 May 2024
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17:07 CoCoALib Feature #1743: Implement Truncated GBases for homogeneous input
- John Abbott wrote:
> Is it worth putting the ex-bug (mentioned in comment 6 above) as a genuine exbug test?
hmmm,... -
09:42 CoCoALib Feature #1743: Implement Truncated GBases for homogeneous input
- Is it worth putting the ex-bug (mentioned in comment 6 above) as a genuine exbug test?
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09:40 CoCoALib Feature #1742: MinGens could be faster
- Could we put here a couple of test cases?
I think the "fancy" phrase is "regression testing": make sure the some fut...
30 May 2024
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17:43 CoCoALib Feature #1819 (In Progress): New functions in CoCoALib using GBasisTrunc: MinSubsetOfGens, IsContainedTrunc, ..
- We have in CoCoA-5
+ MinSubsetOfGens
+ IsContainedTrunc(I,J)
using GBasisTrunc (if homogenous and not(HasGBasis(J)... -
17:38 CoCoALib Bug #1740 (Feedback): MinGens gives non minimal gens *if some deg=0*
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17:22 CoCoALib Bug #1740 (Resolved): MinGens gives non minimal gens *if some deg=0*
- A clever implementation is difficult/impossible.
However, the new @GBasisTrunc@ (which also works for non-negative g... -
11:33 CoCoALib Bug #1740: MinGens gives non minimal gens *if some deg=0*
- This is how the usual MinGens labelling can go horribly wrong with *non-negative* gradings:
S := NewPolyRingWeight... -
17:17 CoCoALib Feature #1743: Implement Truncated GBases for homogeneous input
- There was a bug in GBasisTrunc, now fixed.
These functions are in CoCoA-5. Port them to CoCoALib:
+ MinSubsetOfG... -
11:28 CoCoALib Feature #1742 (Resolved): MinGens could be faster
- Resolved using truncation (works also for non-negative gradings)
28 May 2024
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17:48 CoCoALib Design #1689: Automatic mapping of RHS in += etc
- When we multiply or divide a polynomial by a coefficient, we can use myMulByCoeff/myDivByCoeff.
This is actually che... -
17:41 CoCoALib Design #1689: Automatic mapping of RHS in += etc
- Is this valid now? something along this lines is valid.
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14:39 CoCoALib Design #1744: Implement GBMill (aka Groebner Framework)
- First step would be to kill definitely all the code for the dynamic GBasis.
It is sad to do so, but I have no idea h... -
14:12 CoCoALib Design #1744: Implement GBMill (aka Groebner Framework)
- John Abbott wrote:
> *THIS* could be a good goal for version 1.0. Do we have enough resources to achieve that?
I... -
14:11 CoCoALib Feature #1743: Implement Truncated GBases for homogeneous input
- MinGens now truncates to the max degree of the generators.
Can be considerably faster than before, of course.
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14:09 CoCoALib Feature #1743: Implement Truncated GBases for homogeneous input
- Implemented.
Meanwhile I made a few tiny changes in the direction of the Framework/Mill.
Tested, seems fine.
Now...
27 May 2024
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19:27 CoCoALib Design #1744: Implement GBMill (aka Groebner Framework)
- *THIS* could be a good goal for version 1.0. Do we have enough resources to achieve that?
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16:46 CoCoALib Feature #1743 (In Progress): Implement Truncated GBases for homogeneous input
- One crucial starting point is making a proper constructor for GRingInfo.
Currently the constructor has many argument...
25 May 2024
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02:13 CoCoALib Feature #1667: GBasis over ZZ: port to CoCoALib
- That is the idea. We just have to understand who will be the authors and what should be done before submitting. I bel...
24 May 2024
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16:40 CoCoA-5 Support #1650: Potentially confusing prompt: waiting for semicolon
- John Abbott wrote:
> Anna suggests
> *@[[waiting for ";"]]@*
checked in @LineProviders.C@ -
16:33 CoCoALib Bug #1740: MinGens gives non minimal gens *if some deg=0*
- While trying to understand how to work around this, I resumed the partial minimalization with the function @MinGens_a...
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14:55 CoCoALib Bug #1705: ProgressReporter: prepare for new loop?
- John Abbott wrote:
> Or *@myRestart@*?
@myReset@ is myFavourite ;-) -
10:13 CoCoALib Bug #1705: ProgressReporter: prepare for new loop?
- Or *@myRestart@*?
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11:53 CoCoALib Feature #1818 (In Progress): Implement FGLM
- Done, together with Evelina Lanteri.
We used LinDepMill and QBGenerator: worked very well.
Still to decide: user in... -
11:47 CoCoALib Feature #1818 (In Progress): Implement FGLM
- Implement FGLM algorithm for 0-dim ideals
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11:45 CoCoALib Feature #937 (Closed): LinDepMill: Mill for linear dependencies
- Many years have passed. This class has been thoroughly used/tested.
It is used in the functions @ShapeLemma@ and @F... -
10:12 CoCoALib Feature #1667: GBasis over ZZ: port to CoCoALib
- John Abbott wrote:
> The CoCoA-5 version is in @*prototype-GBZZ.cpkg5@*.
> I tried just one test, and the CoCoA-5 c... -
09:49 CoCoALib Feature #1778: Homogenizer
- Anna has raised some points to consider (related to the last comment above which creates many poly rings)
* *Qn* eac... -
09:10 CoCoALib Feature #1817 (In Progress): OSCAR/MaRDI JSON interface
- I have made a first throwaway prototype, mostly to learn about the foibles of the OSCAR/MaRDI JSON format.
I am wo... -
09:08 CoCoALib Feature #1817 (In Progress): OSCAR/MaRDI JSON interface
- Build a good first version of an interface for sending/receiving OSCAR/MaRDI JSON serializations of mathematical obje...
23 May 2024
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21:42 CoCoALib Feature #1778: Homogenizer
- Wolfram Decker would like to have a way of handling the rings involved in projective geometry: namely 1 "homogeneous"...
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21:34 CoCoALib Design #1816 (Feedback): printing rings
- I have updated the expected output of 2 @src/tests/@
Thanks for fixing this so quickly!
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16:42 CoCoALib Design #1816: printing rings
- This is fine for me:...
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16:39 CoCoALib Design #1816: printing rings
- Now it prints...
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16:36 CoCoALib Design #1816 (Resolved): printing rings
- Follow up:
Me: no, we don't.
In fact, this highlights there is a different underlying implementation.
This is no... -
16:35 CoCoALib Design #1816 (Feedback): printing rings
- From email by John Abbott:...
20 May 2024
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17:12 CoCoALib Feature #1381: Type ideal for ZZ[x[1..n]]
- We have GBasis code for poly ideals over ZZ, so make it work with these ideals.
More failing operations:... -
17:03 CoCoALib Support #1263: Tidy CoCoALib test directory
- Can we close this soon?
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17:01 CoCoALib Slug #1118: SLUG: factorization of x^9999
- How to compute the GCD of x^e1 * g1(x^d1) and x^e2 * g2(x^d2)?
Is it just x^min(e1,e2) * gcd(g1(x^D1), g2(x^D2))[x... -
16:56 CoCoALib Support #262 (In Progress): Play with GIT
- I am strongly tempted to postpone this until after we reach version 1.0.
Pros: putting the sources on GitHub (or s...
13 May 2024
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22:26 CoCoA-5 Design #1508: Initial ring
- The actual message is...
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22:23 CoCoA-5 Design #1508: Initial ring
- *(1)* I modified @packages/init.cocoa5@ so that it prints out a message about the initial ring.
This was a *ba...
10 May 2024
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11:16 CoCoA-5 Design #610 (Closed): Variable It: assign before or after printing
- Current behaviour is acceptable (and should still be safe even if we make printing interruptible).
Closing.
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11:07 CoCoA-5 Design #1496 (Rejected): Use "special" names for variables inside tests
- After brief discussion with Anna: KISS -- it works without problem as is, so don't waste time fixing a problem which...
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10:50 CoCoA-5 Design #1508: Initial ring
- I'm undecided about changing the name (some beginner user might think that the name "QQxyz" has some interpretation b...
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10:33 CoCoA-5 Support #1650: Potentially confusing prompt: waiting for semicolon
- Anna suggests
*@[[waiting for ";"]]@*
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10:30 CoCoA-5 Support #1650: Potentially confusing prompt: waiting for semicolon
- Another suggestion
*@[[incomplete or forgot ";"?]]@*
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10:02 CoCoA-5 Support #1650: Potentially confusing prompt: waiting for semicolon
- > How about a very succinct *@[[forgot ";"?]]@*
yes!
09 May 2024
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20:58 CoCoALib Feature #1778: Homogenizer
- The interface in OSCAR lets the caller choose where the "new" indeterminates appear in the list of indets of the bigg...
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20:46 CoCoALib Feature #1667: GBasis over ZZ: port to CoCoALib
- The CoCoA-5 version is in @*prototype-GBZZ.cpkg5@*.
I tried just one test, and the CoCoA-5 code was noticeably faste... -
10:24 CoCoA-5 Support #1650: Potentially confusing prompt: waiting for semicolon
- Some more thoughts:
* How long may the prompt be?
* For whom is the prompt meant to be useful?
For a complete be...
08 May 2024
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16:56 CoCoA-5 Support #1603 (Rejected): Unhelpful behaviour in "compatibility mode": double error mesg
- John Abbott wrote:
> I'm still with *won't fix* because we have far more important things to do with our time.
> Re... -
16:53 CoCoA-5 Support #1650: Potentially confusing prompt: waiting for semicolon
- I don't mind the current message, but also...
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16:49 CoCoA-5 Support #1566 (Closed): What does rad do?
- John Abbott wrote:
> There is no *@rad@* function in the current version of CoCoA-5.
> Close?
yes, it was a temp...
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