Activity
From 05 Jun 2017 to 04 Jul 2017
04 Jul 2017
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15:20 CoCoALib 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...
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13:03 CoCoA-5 Bug #1087 (Resolved): EmacsUI: get error "wrong-type-argument processp nil" when doing M-x cocoa5 when executable does not exist
- I have added a 1 sec sleep when the @cocoa5@ script prints out an error message.
This seems not to be inconvenient f... -
11:36 CoCoA-5 Bug #1087 (In Progress): EmacsUI: get error "wrong-type-argument processp nil" when doing M-x cocoa5 when executable does not exist
- A simple workaround is to put a short @sleep@ in the @cocoa5@ script so that the CoCoA-5 buffer still has a process.
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11:21 CoCoA-5 Bug #1087: EmacsUI: get error "wrong-type-argument processp nil" when doing M-x cocoa5 when executable does not exist
- Emacs version is 24.5.1 running on Fedora 24 Linux.
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11:20 CoCoA-5 Bug #1087 (Closed): EmacsUI: get error "wrong-type-argument processp nil" when doing M-x cocoa5 when executable does not exist
- I tried starting CoCoA-5 inside a fresh emacs by typing @M-x cocoa5@, and got the error *@Wrong type argument process...
03 Jul 2017
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22:21 CoCoALib 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...
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22:15 CoCoALib 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
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17:13 CoCoALib Design #1086: New design for interrupt mechanism
- The function @SignalInterruptsCoCoA@ just overwrites any previously registered signal handler.
A better design mig... -
17:10 CoCoALib 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 CoCoALib 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 CoCoALib 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:...
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14:03 CoCoALib 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 CoCoALib 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 ...
29 Jun 2017
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16:32 CoCoA-5 Feature #1084 (Feedback): New function: PrevPrime
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16:31 CoCoA-5 Feature #1084: New function: PrevPrime
- Great, thanks!
I could swear I had looked for it, without finding it....
I have added it to cocoa-5.
checked-in
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14:54 CoCoA-5 Feature #1084 (In Progress): New function: PrevPrime
- In CoCoALib the function is already there; it is not exported to CoCoA-5, but perhaps should be?
It is also documented! -
08:39 CoCoA-5 Feature #1084 (Closed): New function: PrevPrime
- We have @NextPrime@.
For modular methods it would be nice to have @PrevPrime@, so that we can start from the biggest... -
13:45 CoCoA-5 Feature #1021: CoCoA Manual: search should ignore multiple spaces
- John Abbott wrote:
> I am still a bit undecided how best to handle double quotes. I see 3 reasonable options:
> # ... -
12:43 CoCoA-5 Feature #1021 (Resolved): CoCoA Manual: search should ignore multiple spaces
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11:46 CoCoA-5 Feature #1021: CoCoA Manual: search should ignore multiple spaces
- I am still a bit undecided how best to handle double quotes. I see 3 reasonable options:
# leave them as they are
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11:36 CoCoA-5 Feature #1021: CoCoA Manual: search should ignore multiple spaces
- John Abbott wrote:
> Yes, the last example was deliberately strange; I do not think it matters if such a strange inp... -
09:22 CoCoALib Bug #1083: MinPolyQuot: check input (was: MinPolyQuot gives "bad characteristic" error)
- Reminder for myself: update the manual, clarify the meaning, and show evaluation homomorphism.
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09:19 CoCoALib Bug #1083: MinPolyQuot: check input (was: MinPolyQuot gives "bad characteristic" error)
- Done and checked-in.
A cleaner way to call it is... -
08:47 CoCoALib Bug #1083: MinPolyQuot: check input (was: MinPolyQuot gives "bad characteristic" error)
- It is a problem in the input: the third argument must be an indet
(the indet for the univariate polynomial), instead... -
08:12 CoCoALib Feature #900: New function: MinPoly of RingElem in quotient ring
- > Is this a duplicate issue?
no.
This should be just a call to @MinPolyQuot(CanonicalRepr(f), DefiningIdeal(PmodI...
28 Jun 2017
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18:28 CoCoALib Bug #1083 (Closed): MinPolyQuot: check input (was: MinPolyQuot gives "bad characteristic" error)
- The followinginput produces an (unexpected) "bad characteristic" error:...
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18:27 CoCoALib Feature #900: New function: MinPoly of RingElem in quotient ring
- Is this a duplicate issue? Progress is really 0%?
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13:44 CoCoALib Design #1065: Design: should we allow an ideal to change ring?
- An important point in Anna's previous comment is that her function is a "trick".
It seems unreasonable to require th...
27 Jun 2017
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22:29 CoCoALib Design #1065: Design: should we allow an ideal to change ring?
- John Abbott wrote:
> The students here working on translating @HomomorphismFns.cpkg5@ into CoCoALib wanted to reassi...
22 Jun 2017
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13:15 CoCoALib Bug #1082: factor in ZZ[x] gives errors
- A quick check suggests that factorization over ZZ is actually slower than factorization over QQ. This is counter-int...
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13:13 CoCoALib Bug #1082 (Feedback): factor in ZZ[x] gives errors
- The old factorizer (in C) actually factorizes over ZZ, so the only fix needed was the handling of the content.
I i...
21 Jun 2017
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21:33 CoCoALib Bug #1082 (In Progress): factor in ZZ[x] gives errors
- The problem is content handling. See around line 282 in @factor.C@
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21:32 CoCoALib Bug #1082 (Closed): factor in ZZ[x] gives errors
- factorizing in ZZ[x] gives errors.
Rectify.
20 Jun 2017
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16:27 CoCoALib Bug #1081 (Feedback): ideal() * RingElem gives error
- added tests in anna.cocoa5
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16:20 CoCoALib Bug #1081: ideal() * RingElem gives error
- fixed it: now testing
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16:19 CoCoALib Bug #1081 (Closed): ideal() * RingElem gives error
- ...
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14:24 CoCoA-5 Bug #1080: intersect: problem with zero generators
- We must remember to add some tests for various failing cases when this has been resolved.
*PS* it is a little tedi...
16 Jun 2017
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19:14 CoCoA-5 Bug #1080: intersect: problem with zero generators
- The problem appears to be the ctor for a @GPoly@ which does not allow @GPoly@ of 0 to be created.
Location @TMPGredu... -
19:02 CoCoA-5 Bug #1080 (Closed): intersect: problem with zero generators
- There are still problems with zero generators:...
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17:24 CoCoA-5 Support #1077 (Resolved): Manual: remove old stuff about "devices"
- I have checked in the updated doc. Anna will check it.
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17:22 CoCoALib Bug #1064 (Feedback): Bug in MinPolyModular (ugly prime)
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16:50 CoCoALib Bug #1064 (In Progress): Bug in MinPolyModular (ugly prime)
- The following example gives SEGV on the latest internal version of CoCoA:...
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16:48 CoCoALib Design #1065 (In Progress): Design: should we allow an ideal to change ring?
- The students here working on translating @HomomorphismFns.cpkg5@ into CoCoALib wanted to reassign an ideal changing r...
14 Jun 2017
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14:58 CoCoA-5 Support #1079 (In Progress): CoCoAManual: AffHilbertFn accepts also ideal (correct?)
- The fn @AffHilbertFn@ accepts a RING or an IDEAL.
The manual says it accepts only a RING.
Rectify!
13 Jun 2017
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16:37 CoCoALib Bug #1078 (Closed): makefile: ungraceful when interrupted
- It seems that interrupting the building of @Makefile_dependencies@ gives the impression (to @make@) that the dependen...
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11:28 CoCoA-5 Support #1077 (In Progress): Manual: remove old stuff about "devices"
- I have already done some of this.
While this is not that important, I prefer to resolve it quickly, so I have left... -
11:26 CoCoA-5 Support #1077 (Resolved): Manual: remove old stuff about "devices"
- The CoCoA-5 manual still contain references to (input-output) "devices".
This is now very obsolete.
Clean the rel...
12 Jun 2017
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19:08 CoCoA-5 Bug #670 (Feedback): Error column indicator misaligned with non-printing (unprintable) characters
- This has already been done (ages ago?).
Moving to "feedback".
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18:27 CoCoA-5 Bug #1076: EmacsUI: interrupt copies line cursor is on to bottom then interrupts
- Marked as low priority because it appears to be harmless, just "unsightly".
I suspect it may be a feature of @comint... -
18:25 CoCoA-5 Bug #1076 (New): EmacsUI: interrupt copies line cursor is on to bottom then interrupts
- Using Emacs, if you move the cursor away from the bottom line in the *@*cocoa5*@* buffer, and then interrupt a comput...
07 Jun 2017
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15:19 CoCoA-5 Feature #1011: Random seed fn
- In the manual page I have given a simplistic example of calling @reseed@ with an argument which varies with the time:...
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