Activity
From 30 Oct 2019 to 28 Nov 2019
27 Nov 2019
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22:42 CoCoA-5 Feature #1364 (In Progress): Emacs UI: start cocoa5 with system command enabled
- Prototype sent to Anna via email, so she can test it.
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15:53 CoCoALib Bug #1371: French students' example with GFan
- I find it quite strange that the term ordering used to obtain the same LT(I) actually looks to be far away from lex:
...
26 Nov 2019
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15:45 CoCoALib Bug #1371: French students' example with GFan
- Just for curiosity, this lex GBasis can be computed instantly using *GBasisByHomog(I)*.
Then, together with Robbia... -
15:10 CoCoALib Bug #1371 (In Progress): French students' example with GFan
- The time taken depends on the current ring ordering!
If I create the ideal in the ring @QQ[x,y,z]@ with DegRevLex,...
25 Nov 2019
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20:33 CoCoALib Slug #1369 (In Progress): RandomUnimodularMat is slow with many iters
- First impl is quite disappointing; the overhead/cost of matrix mult is embarrassingly high.
Should do recursion base... -
13:48 CoCoALib Slug #1369: RandomUnimodularMat is slow with many iters
- @RandomUnimodularMat(QQ,4,1000000)@ takes too long. It is faster to do @product([RandomUnimodularMat(QQ,4,10000) | j...
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13:45 CoCoALib Slug #1369 (In Progress): RandomUnimodularMat is slow with many iters
- @RandomUnimodularMat@ becomes too slow when number of iters is high.
Try a divide-and-conquer approach. -
17:46 CoCoALib Bug #1371: French students' example with GFan
- Just for completeness here is the input:...
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17:44 CoCoALib Bug #1371 (In Progress): French students' example with GFan
- I have just tried the French students' example as argument to @GroebnerFanIdeals@, and it computed all 167 GBases qui...
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16:35 CoCoALib Design #1370: RingID counter increased inside some functions
- John Abbott wrote:
> We could perhaps have two counters: one for "user created" rings and one for "internal" rings. ... -
14:35 CoCoALib Design #1370: RingID counter increased inside some functions
- We could perhaps have two counters: one for "user created" rings and one for "internal" rings. Or perhaps just posit...
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14:32 CoCoALib Design #1370 (New): RingID counter increased inside some functions
- Each ring in CoCoALib has a unique ring-ID (machine integer).
Some functions (_e.g._ *@syz@*) create new rings int...
24 Nov 2019
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13:11 CoCoA-5 Support #1368 (Resolved): Improve manual for mod
- The solution to Ange's problem is to compute @mod(a-b,p)@; this will be zero iff @a@ and @b@ are congruent modulo @p@...
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13:04 CoCoA-5 Support #1368 (In Progress): Improve manual for mod
- Currently the manual and the implementation are incompatible. The manual says that the remainder is always non-negat...
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12:58 CoCoA-5 Support #1368 (Closed): Improve manual for mod
- The manual entry for *@mod@* needs to be improved.
Ange recently reported that *@mod(a,p) = mod(b,p)@* did not wor... -
12:51 CoCoA-5 Feature #1367: CoCoA-5.3.0: release linked with more recent version of normaliz
- I'm hoping that this should be easy (at least on Linux).
On my linux box, compilation and linking work fine with nor... -
12:49 CoCoA-5 Feature #1367 (Closed): CoCoA-5.3.0: release linked with more recent version of normaliz
- The last release was linked with an "old" version of normaliz. Make the next release with a more recent version (_e....
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12:46 CoCoA-5 Design #1352 (Resolved): cocoa5 (launch) script: sleep time
- I have just tried @xterm -e ./cocoa5@, and now prefer a 4 second wait after printing the message (perhaps it should b...
22 Nov 2019
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15:35 CoCoALib Design #1366: Should configure remove the file ERR_MESGS if it’s empty?
- I have changed my copy of @configure@.
I'll try it a few times before checking in...
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13:57 CoCoALib Design #1366: Should configure remove the file ERR_MESGS if it’s empty?
- John Abbott wrote:
> Should configure always remove @ERR_MESGS@?
sounds good to me
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12:26 CoCoALib Design #1366 (In Progress): Should configure remove the file ERR_MESGS if it’s empty?
- Should configure always remove @ERR_MESGS@?
After looking quickly at the code, it seems that the file is used only...
21 Nov 2019
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18:51 CoCoALib Design #1366 (Closed): Should configure remove the file ERR_MESGS if it’s empty?
- The configuration progress produces a file called *ERR_MESGS* which should contain, well, the error messages.
Should... -
14:17 CoCoA-5 Support #1365 (New): Package EdgeIdeal not documented
- While preparing to present "graph colouring" I discovered a few mins ago that *@ChromaticNumber@* is a package-export...
19 Nov 2019
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16:49 CoCoALib Support #1276 (Closed): Release 0.99650
18 Nov 2019
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10:51 CoCoA-5 Feature #1364: Emacs UI: start cocoa5 with system command enabled
- John Abbott wrote:
> Here are two possible ways to implement:
> * *(A)* new emacs commands _e.g._ *@cocoa5-with-sys...
15 Nov 2019
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15:40 CoCoA-5 Feature #1364: Emacs UI: start cocoa5 with system command enabled
- Ange's situation is that she has the source code in @file.cocoa5@ and wants to send it to CoCoA-5 with @SystemCommand...
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15:30 CoCoA-5 Feature #1364 (Closed): Emacs UI: start cocoa5 with system command enabled
- Ange wants to use @SystemCommand@ inside some of her code, but when she starts CoCoA-5 from inside emacs @SystemComma...
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15:28 CoCoA-5 Support #677: Credits to CoCoA-5 contributors
- * *Manual page* this is probably simplest to implement (and likely to suffice for all or almost all uses)
* *Functi...
14 Nov 2019
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19:22 CoCoALib Design #982: Catching interrupts in example progs?
- I have modified @ex-empty.C@ so that it creates a @SignalWatcher@ immediately after @GlobalManager@, and also has a h...
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19:17 CoCoALib Bug #1362: GBasis verbose mode: some output is on cerr/clog
- I have mostly fixed this. There are also very many commented out debugging prints to clog. Some I have removed; but...
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09:49 CoCoALib Bug #1362 (In Progress): GBasis verbose mode: some output is on cerr/clog
- In *@TmpGReductor.C@* there are numerous print commands onto *@clog@*; the commands are called only after checking *@...
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15:28 CoCoALib Feature #1360 (In Progress): configure script: add flags for "only cocoalib" or "both cocoalib and cocoa5" (for boost)
- JAA prefers to delay this so there is time to make more checks...
13 Nov 2019
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16:56 CoCoA-5 Slug #1363: Emacs UI: slow with long lines
- Original location of link was ...
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16:55 CoCoA-5 Slug #1363 (In Progress): Emacs UI: slow with long lines
- I have found mention of *@so-long.el@* for emacs which is supposed to help with long lines.
We should investigate.
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14:59 CoCoALib Bug #1362 (Closed): GBasis verbose mode: some output is on cerr/clog
- With @VerbosityLevel@ set to 150, some output when computing a gbasis is on stderr instead of stdout: _e.g._...
12 Nov 2019
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14:48 CoCoALib Bug #1361 (Closed): Compilation fails when compiling with libgsl
- If I compile cocoalib 0.99601 with libgsl (version 2.6-1) using:...
09 Nov 2019
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21:45 CoCoA-5 Feature #1358: Emacs UI: should active input line be cleared before sending line from CoCoA-5 file?
- Checked into CVS.
I had added a fn for sending a string to the running *cocoa5* buffer; I have not yet altered any f... -
09:18 CoCoA-5 Feature #1358: Emacs UI: should active input line be cleared before sending line from CoCoA-5 file?
- Tried on two (oldish) version of emacs.
Both work.
07 Nov 2019
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20:17 CoCoA-5 Feature #1358: Emacs UI: should active input line be cleared before sending line from CoCoA-5 file?
- I noticed quite a lot of "almost duplication" in the *@cocoa5.el@* file. We should try to reduce that: more work for...
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18:37 CoCoA-5 Feature #1358 (In Progress): Emacs UI: should active input line be cleared before sending line from CoCoA-5 file?
- I have a first version which seems to work: after *@(goto (point-max))@* I have inserted *@(move-beginning-of-line ni...
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17:43 CoCoA-5 Feature #1358: Emacs UI: should active input line be cleared before sending line from CoCoA-5 file?
- I think it is probably a good idea to clear the last line (assuming this can be done reasonably easily in emacs).
...
05 Nov 2019
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14:26 CoCoALib Design #982: Catching interrupts in example progs?
- On my machine all examples are faster than 5s, but several took more than 2s.
I have made some (local) changes to ma... -
11:49 CoCoALib Design #982 (In Progress): Catching interrupts in example progs?
- There are two example progs for interrupts (*@ex-interrupt1.C@* and *@ex-interrupt2.C@*).
I am not sure that they ar...
04 Nov 2019
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11:01 CoCoALib Feature #1360: configure script: add flags for "only cocoalib" or "both cocoalib and cocoa5" (for boost)
- John Abbott wrote:
> Anna suggested *@--only-cocoalib@*
>
> JAA prefers that the default be "only cocoalib", and ...
01 Nov 2019
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10:28 CoCoALib Feature #1360: configure script: add flags for "only cocoalib" or "both cocoalib and cocoa5" (for boost)
- Anna suggested *@--only-cocoalib@*
JAA prefers that the default be "only cocoalib", and that an option must be giv... -
10:22 CoCoALib Feature #1360 (Closed): configure script: add flags for "only cocoalib" or "both cocoalib and cocoa5" (for boost)
- Considering adding configuration option(s) to specify:
* compile just cocoalib
* compile cocoalib and also also CoC...
31 Oct 2019
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18:34 CoCoALib Support #1276: Release 0.99650
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16:24 CoCoALib Support #1276: Release 0.99650
- Valgrind OK...
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15:55 CoCoALib Bug #1248 (Closed): MinPolyQuot: guaranteed and ideal without GBasis
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11:17 ApCoCoA Feature #1328: New ApCoCoA UI
- Next meeting is 2019-11-21 at 11:00.
AIM: *get interactive window and history mechanism working.*
30 Oct 2019
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22:44 CoCoA-5 Slug #480: gcd too slow for large degree univariate poly
- This slug still exists: on my current machine, top reports that CoCoA-5 is using 13Gbyte of memory. The computation ...
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22:39 CoCoALib Slug #952 (Closed): GCD very slow
- It is no longer very slow; no sure how fast it is (seems to be instant).
Closing.
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22:32 CoCoALib Bug #986: GFan: require version newer than 0.6
- *2019-10-30* Update: I now have gfanlib-0.6.2 (released 2018-09-28 according to GFanlib website).
However it sti... -
22:23 CoCoALib Slug #1359: gcd: low degree but big coeffs can be slow
- If the number of steps in the PRS is very small then a direct method may well be better than the modular method.
T... -
22:21 CoCoALib Slug #1359 (New): gcd: low degree but big coeffs can be slow
- gcd of low degree polys with big coeffs can be too slow....
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22:16 CoCoALib Bug #1113 (Closed): gcd crashes (Floating point exception)
- *2019-10-30* I have just tried the example in comment 1, and it no longer crashes. No idea when it was resolved.
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22:10 CoCoALib Feature #1218 (In Progress): 32-bit or 64-bit preprocessor macro?
- Exactly what wordsize assumptions do we want to make?
* *(A)* 32-bits or not (meaning more than 32?)
* *(B)* 32-... -
21:56 CoCoALib Feature #1218: 32-bit or 64-bit preprocessor macro?
- *2019-10-30* I have just checked, and CoCoALib and CoCoA-5 both compile, run and all tests pass on my little 32-bit m...
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21:51 CoCoALib Feature #1219: Frobby version number
- There was recent email from Bjarke Roune stating that he will no longer be able to maintain Frobby.
We should contac... -
21:47 CoCoALib Feature #1282: subresultant
- Note that there is already *@SubresultantSeq@* in @SparsePolyOps-resultant@.
Where did this impl come from? Is it a... -
21:44 CoCoALib Slug #1324 (In Progress): Improve RootBound
- Here is a family of examples where factorization may not work so well:
let @f@ be a product of @x^k-1@ where the @k@... -
16:09 CoCoA-5 Feature #1358 (Closed): Emacs UI: should active input line be cleared before sending line from CoCoA-5 file?
- When using the Emacs UI, possibly confusing problems can arise if the user has started to type some input in the exec...
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11:20 CoCoA-5 Support #1222: Release CoCoA-5.3.0
- I have compiled CoCoA-5 (current CVS) on my little 32-bit netbook (with @readline@ but no other extlibs). Compilatio...
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11:08 CoCoALib Support #1276: Release 0.99650
- FWIW I have compiled CoCoALib on my old "netbook" which is 32-bit. All tests passed.
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11:06 ApCoCoA Design #1357: How to connect GUI to cocoa5 executable?
- I wonder how this was achieved with CoCoA-4.
I do not believe that we implemented any special in CoCoA-4 to enable... -
11:02 ApCoCoA Design #1357 (New): How to connect GUI to cocoa5 executable?
- The GUI needs to start a separate process for CoCoA-5, and then be able to send inputs to CoCoA-5, and receive output...
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