Activity
From 19 Sep 2021 to 18 Oct 2021
18 Oct 2021
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12:01 CoCoA-5 Bug #1623: EmacsUI: annoying colours
- I suppose we could change the printed form to something like this:...
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11:58 CoCoA-5 Bug #1623 (Feedback): EmacsUI: annoying colours
- I have now found examples where the EmacsUI can change colours annoyingly: printing out homomorphisms....
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11:33 CoCoA-5 Bug #1622: BuiltinOneLiners -- less precise location in error messages
- Here is an example of what I mean:...
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11:30 CoCoA-5 Bug #1622: BuiltinOneLiners -- less precise location in error messages
- I have set the target version as 5.3.4, but this may be wildly optimistic.
I fear that this request may be rather ha... -
11:29 CoCoA-5 Bug #1622 (New): BuiltinOneLiners -- less precise location in error messages
- I have noticed that error messages produced by fns which are defined in *@BuiltinOneLiners@* are less precise than th...
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11:26 CoCoA-5 Support #1621: Doc for the various BuiltIn files
- I have set 5.3.4 as the target version because I think it would be a good idea to have a first version available soon...
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11:25 CoCoA-5 Support #1621 (New): Doc for the various BuiltIn files
- We need to produce documentation explaining the difference between the various *@BuiltIn@* files.
When someone wants... -
11:23 CoCoA-5 Feature #1596: Add CoCoA5 function NmzHilbertBasisKer
- Compare also with *@LinKer@* which returns MAT and *@LinKerBasis@*, returning LIST LIST RINGELEM.
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11:08 CoCoA-5 Bug #928: ciao, exit, quit can be used not only at top level
- The problem as describe is still present.
The easy approach is to leave the interpreter as is, and just change the...
17 Oct 2021
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20:49 CoCoA-5 Bug #1412 (Feedback): Emacs UI: font size
- I have just checked in a modified version of cocoa5.el.
I have replaced line 1337 by an *@if@* which sets the major ...
15 Oct 2021
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20:12 CoCoA-5 Bug #1412: Emacs UI: font size
- I think the relevant line is 1337 in @cocoa5.el@... too tired to try now.
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14:09 CoCoA-5 Bug #1412: Emacs UI: font size
- A quick search produced the following advice:
https://stackoverflow.com/questions/2238418/emacs-lisp-how-to-get-bu... -
14:24 CoCoALib Bug #1620 (New): MinPolyQuot not documented
- MinPolyQuot is available in CoCoALib but is not documented.
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14:22 CoCoALib Feature #1619 (Closed): Make saturate available in CoCoALib
- It seems like this is already implemented. There is a function mySaturate in _AlgebraicCore/SparsePolyOps-ideal.C_.
...
14 Oct 2021
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15:50 CoCoALib Design #1617: UnivariateIndetIndex: exact semantics
- Mmm, should it be an error to call @UnivariateIndetIndex@ if the polyring has just 1 indet?
After all, the answer i... -
15:48 CoCoALib Support #1618 (Closed): Tidy ex-RingElem2
- I think that *@ex-RingElem2@* needs to be updated/tidied.
For instance, there is no need to pass the ring to the f...
13 Oct 2021
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20:34 CoCoALib Design #1617: UnivariateIndetIndex: exact semantics
- What about the case of a constant poly in a polyring with just 1 indet?
Error or not? (assuming we opt for an error... -
20:14 CoCoALib Design #1617 (Closed): UnivariateIndetIndex: exact semantics
- What are the exact semantics of *@UnivariateIndetIndex@*?
In particular what should the function return if passed ... -
17:11 CoCoA-5 Feature #1616 (Closed): UnivariateIndetIndex: remove cocoa-5 implementation and use CoCoALib's
12 Oct 2021
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09:33 CoCoA-5 Slug #709: Speed of some Normaliz calls (NmzComputation)
- (2021-10-12) Last time this was checked was 4 years ago! We must check to see if it still a problem!
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09:27 CoCoA-5 Feature #912: Add TUTORIALs to online manual
- The situation has improved. Maybe I will get good feedback from the course here in Kassel (2021-10-12).
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09:26 CoCoA-5 Feature #1246: Revive old CoCoA4 package called "cocoa5.cpkg"
- I think this has progressed but nothing was noted here. Increased %done.
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09:22 CoCoA-5 Slug #1581: Slow sqfr: rad(f)
- *2021-10-12* this is still a problem.
Presumably the problem comes from computing a multivariate gcd over a finite... -
09:12 CoCoA-5 Bug #1443: Illegal instruction
- Esiste ancora questo problema? Non ho piu` sentito niente.
Possiamo semplicement chiudere l'issue? -
09:03 CoCoA-5 Feature #1415: thmproving package
- Any progress on this issue in the last year?
05 Oct 2021
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20:21 CoCoA-5 Design #1568: RMap and image: obsolescent?
- I have boosted priority to "high" because I would like this to be completed soon!
04 Oct 2021
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12:13 CoCoA-5 Bug #1613 (Resolved): CRASH with RingHom from FrF
- Similar to issue #1614, I have "hacked" the interpreter, and the examples seem to work now.
But I am not confident t... -
12:11 CoCoA-5 Bug #1614 (Resolved): SourceRegion gives misleading error mesg
- I have rather blindly changed the interpreter. The code now seems to work as hoped (but I am not too confident that ...
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12:08 CoCoALib Bug #1601: Compilation ambiguity
- This particular problem has been resolved (by eliminating the *@apply@* fn from CoCoALib).
In this case the removal ... -
12:03 CoCoALib Feature #1598: RingHom: implement phi(X) as apply(phi, X) also for X vector and matrix
- We should move towards making *@apply@* obsolescent in CoCoA-5 now that RINGHOM can be applied directly to LIST and M...
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12:00 CoCoALib Feature #1598: RingHom: implement phi(X) as apply(phi, X) also for X vector and matrix
- I am not sure whether the following behaviour is what is wanted:...
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11:57 CoCoA-5 Design #1615 (Rejected): apply: remove for RingHom
- *THIS IS REALLT A DUPLICATE OF #1598. SO REJECTING!*
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11:16 CoCoA-5 Design #1615 (Rejected): apply: remove for RingHom
- As done for CoCoALib, permit RINGHOMs to be applied directly to LIST and MAT.
Then eliminate @apply@ (or make it obs... -
11:50 CoCoALib Design #1467: Change syntax apply(phi,M) into phi(M)?
- In the end my hand was forced.
Some future version of C++ (maybe C++17?) defines a template fn *@apply@* which match... -
09:50 CoCoALib Feature #1589: IdealOfPoints: allow matrix of points to be defined over "wrong" ring
- checked in (4 Oct 21)
02 Oct 2021
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10:25 CoCoA-5 Bug #1614: SourceRegion gives misleading error mesg
- The relevant source code is around line 4170 in @Interpreter.C@
inside the function @void SourceRegionStatement::imp... -
10:23 CoCoA-5 Bug #1614 (Closed): SourceRegion gives misleading error mesg
- Here is the simplified failing example from issue #1613:...
01 Oct 2021
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13:53 CoCoA-5 Bug #1613: CRASH with RingHom from FrF
- According to gdb the fn is called (indrectly) from @Interpreter.C:3032@ in @Interpreter::run@
I think the problem m... -
12:35 CoCoA-5 Bug #1613: CRASH with RingHom from FrF
- Probable source code:
@RINGHOM::eval@ around line 2792 in @Interpreter.C@
Probably called from: @intrusive_ptr<Va... -
12:19 CoCoA-5 Bug #1613 (In Progress): CRASH with RingHom from FrF
- Simpler failing example:...
30 Sep 2021
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22:42 CoCoA-5 Bug #1613: CRASH with RingHom from FrF
- Actually a separate bug: @CommonDenom(a*x^2-1/a)@ gives 1 rather than @a@... Ooops!
*NOTE* the code looks fine, ... -
22:35 CoCoA-5 Bug #1613 (Closed): CRASH with RingHom from FrF
- The following causes a crash: why was the exception not caught and handled?...
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14:13 CoCoALib Feature #1602: Sparse matrix (SparseMat)
- Do we want to handle structured matrices like sparse matrices? _e.g._ Toeplitz matrices are specified by just a few ...
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10:45 CoCoALib Support #1612 (Closed): Merge the doc file RadicalMembership.txt into ideal.txt
- Merge the doc file *@RadicalMembership.txt@* into *@ideal.txt@*?
Note that the doc refers to @ex-RadicalMembership... -
10:23 CoCoALib Support #1611 (New): Documentation for PrimaryDecomposition
- The CoCoALib doc for @PrimaryDecomposition@ needs to be improved.
I have just added a description of the data type i...
28 Sep 2021
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17:48 CoCoA-5 Bug #1610 (Feedback): IsInRadical: some more little bugs
- fixed. I didn't encounter other new bugs.
Updated test-exbugs -
16:48 CoCoA-5 Bug #1610: IsInRadical: some more little bugs
- This seems to be the problem...
27 Sep 2021
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09:57 CoCoA-5 Bug #1610: IsInRadical: some more little bugs
- Error for...
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09:55 CoCoA-5 Bug #1610: IsInRadical: some more little bugs
- Error if *GradingDim* is 0 (lex, elim, ...) for call to *IsHomog*. Now fixed.
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09:52 CoCoA-5 Bug #1610 (Closed): IsInRadical: some more little bugs
- I met some more bugs for extreme cases.
Usually, after isolating them, the solution is trivial.
List below.
24 Sep 2021
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22:37 CoCoA-5 Feature #1536 (Closed): Implement xel?
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22:35 CoCoA-5 Bug #1215 (Closed): RationalSolve: gives "Error: must be non-zero"
- Closing this issue because there is no clear indication of what to test.
I suspect the new design of @RationalSolve@... -
22:32 CoCoA-5 Bug #1537 (Closed): EmacUI: strange colours, sometimes
- I have not seen the problem of unexpected colours for some time.
Reading through the notes suggests that Emacs's way... -
22:29 CoCoA-5 Bug #1574: ApproxSolveTF
- Probably @ApproxSolveTF@ should have an accuracy-check-loop the same was as was done for @ApproxSolve@:
the heuristi... -
22:26 CoCoA-5 Bug #1573 (Closed): ApproxSolve: very imprecise
- @ApproxSolveTF@ was surprisingly fast on the example given in the description (about 9s, vs 64s using @ApproxSolve@)....
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20:34 CoCoA-5 Bug #1573: ApproxSolve: very imprecise
- I have just updated the manual entry for @ApproxSolv@.
I wonder what @ApproxSolveTF@ does... mmm??? -
22:21 CoCoA-5 Slug #1392 (Closed): ApproxSolve: another slow example
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22:18 CoCoA-5 Bug #1539: Website: installation instructions for Microsoft
- With luck the current instructions will be well tested over the next couple of weeks.
I hope we can close this issue... -
22:16 CoCoA-5 Bug #1531 (Closed): CRASH: arithmetic with HilbertSeries (tagged object)
- There is already a test in *@exbugs.cocoa5@*
Closing after 11 months in feedback. -
21:58 CoCoA-5 Bug #713 (Closed): External libs: interrupting not easy
- CoCoALib and CoCoA-5 do often monitor for ctrl-C. Inside CoCoA-5 the situation seems to be reasonably good.
The d... -
21:50 CoCoA-5 Bug #1216 (Closed): RationalSolve: gives wrong answer
- This has been in feedback for 7 months.
I think we mention in the release notes that it is a backward INcompatible c... -
21:47 CoCoA-5 Feature #1293: Vim Plugin for CoCoA
- Same comment as above (11 months ago). We should mention it to the participants at the minicourse.
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21:43 CoCoA-5 Design #1540 (Closed): Double power
22 Sep 2021
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17:45 CoCoALib Bug #1585 (Closed): CRASH/ABORT: GMP overflow
- As observed in comment 11, it would be very hard to try to prevent overflow in all cases.
It thus seems reasonable t...
21 Sep 2021
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11:31 CoCoALib Bug #1601: Compilation ambiguity
- I think I know understand what happens: g++ v.11 has as default C++ version something newer than C++14.
My script @c...
20 Sep 2021
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21:33 CoCoALib Bug #1585: CRASH/ABORT: GMP overflow
- I have worked around the @FloatStr@ problem (actually in @FloorLogBase@) mentioned in comment 4 above.
I just call t... -
20:52 CoCoALib Bug #1585: CRASH/ABORT: GMP overflow
- I have put a new constant called *@OVERFLOW_BITS@* in *@config.H@*, and modified the impls so that they use this cons...
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16:49 CoCoALib Bug #1601: Compilation ambiguity
- Florian succeeded in installing g++-10 on his computer; and he reports that CoCoALib compiled just fine (except a kno...
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16:17 CoCoALib Support #861 (Closed): Janet basis code: TmpJB files give some problems with C++11 (using CLANG/LLVM)
- I have removed the commented-out code (and another function which existed only for that code).
It all compiles, and ... -
16:09 CoCoALib Support #1609 (New): Clean time.C
- The file @time.C@ contains some hackery to work on Microsoft (or other non-unix-like) platforms.
Can we clean this... -
15:41 CoCoALib Design #1558 (Closed): CpuTimeLimit: more frequent clock checks
- No problems have been reported in 7 months. So closing.
Maybe the imminent CoCoA school will find some "interesting... -
14:08 CoCoALib Design #1608 (Feedback): Domain of definition of NextPrime (and PrevPrime)
- I have spoken to Anna who agrees to change the behaviour:
* both fns throw @BadArg@ (or similar) if given (strictly)... -
13:24 CoCoALib Design #1608 (In Progress): Domain of definition of NextPrime (and PrevPrime)
- I am now inclined to allow 0 as arg to @NextPrime@; perhaps this is related to my preference to consider 0 as a "natu...
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