Activity
From 30 Jun 2017 to 29 Jul 2017
24 Jul 2017
- 11:10 Feature #587: port to CoCoALib: Homomorphism pkg (ker, IsInjective, IsSurjective..)
- John Abbott wrote:
> I propose a new fn *@preimage0@* which returns either a preimage or the zero element of the dom...
23 Jul 2017
- 16:02 Feature #587: port to CoCoALib: Homomorphism pkg (ker, IsInjective, IsSurjective..)
- My "clever idea" in comment 2 for cleaning the gens of the kernel does not work well.
I have cleaned the students'...
22 Jul 2017
- 15:18 Feature #1030: IsInRadical: case of homog ideal
- I wonder if either of the following ideas could be completed into an algorithm (with reliable output):
# if the idea... - 15:07 Feature #638: Time limit: let user specify time limit for a computation
- Checked in the new BOOST-free version.
Still have to update doc.
21 Jul 2017
- 16:57 Feature #638: Time limit: let user specify time limit for a computation
- I have modified the structure of @interrupt@, and now have a new version of @CpuTimeLimit@ which does not need BOOST....
- 15:29 Bug #1078 (Feedback): makefile: ungraceful when interrupted
- I have just checked in a version which seems to work correctly in my (few) tests.
A crucial feature is use of the ...
20 Jul 2017
- 13:12 Bug #1078 (In Progress): makefile: ungraceful when interrupted
- It seems that my first attempt does not work as hoped.
Now trying the obvious approach: create a @Makefile_depende... - 13:06 Bug #1089 (In Progress): invalid pointer in "free"
- After about 150 hours the program running under gdb the program finally died from a @SIGABRT@.
The problem occurre...
19 Jul 2017
- 19:47 Design #1065 (Feedback): Design: should we allow an ideal to change ring?
- I have implemented the change: just delete the check inside @operator=@ for ideals.
Some simple tests passed (_e.g._... - 19:27 Support #1056: Release: CoCoALib-0.99560 (together with CoCoA-5.2.2)
- I would like to make a "release" for ISSAC/SC2 School. That is very soon, and there is probably not enough time to m...
- 19:05 Support #1056 (In Progress): Release: CoCoALib-0.99560 (together with CoCoA-5.2.2)
- *RELEASE NOTES FOR CoCoALIB 0.99560* (or an interim version)
* @MinPolyQuot@ (modular) now has no limit on number ... - 19:20 Feature #1035: Improvement: how to sort QuotientBasis?
- As far as I can tell @QuotientBasisSorted@ is already implemented in CoCoA-5.
Should it be moved into CoCoALib?
S... - 19:14 Feature #1030 (Feedback): IsInRadical: case of homog ideal
- The CoCoA-5 package was translated into C++ by some students at Kassel.
I have cleaned up the resulting code, and ch...
17 Jul 2017
- 14:21 Feature #587: port to CoCoALib: Homomorphism pkg (ker, IsInjective, IsSurjective..)
- Should I log the time the students spent on this project? If so, how? (and where?)
- 14:20 Feature #587 (In Progress): port to CoCoALib: Homomorphism pkg (ker, IsInjective, IsSurjective..)
- Since I had to assign some student projects after the CoCoALib mini-course (here in Kassel),
I gave the task of tran...
15 Jul 2017
- 17:27 Feature #638 (Resolved): Time limit: let user specify time limit for a computation
- I have just checked in a first attempt at allowing users to impose time limits on computations in CoCoALib.
It use...
14 Jul 2017
- 21:28 Bug #1088 (Resolved): MinPolyQuot: runs out of primes
- I think I have fixed the code: the only real change needed was to use @NewZZmod@ instead of @NewRingFp@.
This allows... - 18:01 Bug #1088: MinPolyQuot: runs out of primes
- John Abbott wrote:
> The problem is not yet fixed (but I did have to try "hard" to make a big enough example).
!?... - 17:04 Bug #1088 (In Progress): MinPolyQuot: runs out of primes
- The problem is not yet fixed (but I did have to try "hard" to make a big enough example).
The code should switch f... - 11:16 Feature #1090: ExternaLib-MathSAT: first prototype
- I made a class MathSAT::env as a wrapper for msat_env
The interface is currently only via matrices.
See @examples...
12 Jul 2017
- 18:53 Feature #1090: ExternaLib-MathSAT: first prototype
- Cleaned up first prototype (0.99550), all in example into a more proper itnegration in ExternalLib-MathSAT.
The exam... - 18:47 Feature #1090 (Closed): ExternaLib-MathSAT: first prototype
11 Jul 2017
- 10:27 Bug #1089: invalid pointer in "free"
- How to debug this? Finding a smaller/faster example would help... but how?
Perhaps I'll try running it with @valgri... - 10:24 Bug #1089 (In Progress): invalid pointer in "free"
- I have a non-trivial program written using CoCoALib which causes the following error (on Fedora Linux):...
08 Jul 2017
- 21:15 Design #1086 (Feedback): New design for interrupt mechanism
- I have changed the implementation considerably (with simplifying consequences for GlobalManager and the interpreter (...
07 Jul 2017
- 12:23 Bug #1088: MinPolyQuot: runs out of primes
- John Abbott wrote:
> I have just tried running the example from the comment above but with verbosity level 80.
> It... - 11:57 Bug #1088: MinPolyQuot: runs out of primes
- Fixed using PrevPrime instead of NextPrime.
cvs-ed
05 Jul 2017
- 13:00 Bug #1088: MinPolyQuot: runs out of primes
- I have just tried running the example from the comment above but with verbosity level 80.
It prints out each prime u... - 12:51 Bug #1088: MinPolyQuot: runs out of primes
- Here is an example input which triggers the problem (after about 12 mins' CPU time)...
- 12:49 Bug #1088 (Closed): MinPolyQuot: runs out of primes
- I tried @MinPolyQuot@ on a slightly big example, and it ran out of primes.
This is surely a problem with all modul...
04 Jul 2017
- 15:20 Slug #1042: LF curiously slow (breaking a poly into homog pieces)
- After some reflection and after chatting to Anna we have decided that @CutLF@ should also give an error (like @LF@) w...
03 Jul 2017
- 22:21 Slug #1042: LF curiously slow (breaking a poly into homog pieces)
- There was also a question about the name: I have called it @CutLF@. Another possibility could be @MoveLF@ similar to...
- 22:15 Slug #1042 (Resolved): LF curiously slow (breaking a poly into homog pieces)
- I have checked in my implementation (almost the same as the one above, plus some arg checking).
*QUESTION* what sh...
30 Jun 2017
- 17:13 Design #1086: New design for interrupt mechanism
- The function @SignalInterruptsCoCoA@ just overwrites any previously registered signal handler.
A better design mig... - 17:10 Design #1086 (Closed): New design for interrupt mechanism
- The current desgn for interrupt mechanism is not ideal when CoCoALib is called from other libraries.
Try to make a... - 14:19 Design #1085: Fns with "OUT" args: should they give ERR::MixedRings?
- I wonder which other fns are affected?
Presumably we should decide the same way for all of them...
When I have ti... - 14:14 Design #1085 (In Progress): Fns with "OUT" args: should they give ERR::MixedRings?
- I would expect the following two code excerpts to be essentially equivalent:...
- 14:03 Design #1085 (Closed): Fns with "OUT" args: should they give ERR::MixedRings?
- The functions @IsDivisible@ (with 3 args) and @GCDQuot@ have OUT args.
They throw @ERR::MixedRings@ if any of the OU... - 13:18 Feature #259: Squarefree(?) GCD-free basis
- Mostly a wake-up call. There is already an implementation in @GCDFreeBasis.C@.
Decide which data-structures to use ...
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