CoCoA » CoCoA-5

09 Jan 2020

21:15 Feature #1316 (In Progress): Matrix row reduction (rref)

I have put a simple implementation into the current "internal" version of CoCoALib (and CoCoA-5).
It is called *@rre... John Abbott

21:08 Bug #1384 (Resolved): NewPolyRing and SymbolRange

It appears to work fine for me (Linux).
John Abbott

17:40 Bug #1384: NewPolyRing and SymbolRange

Done and cvs-ed.
I cleaned up the code in the 3 files @RingDistr..@ and ediffed them so they are a little bit more s... Anna Maria Bigatti

12:21 Bug #1384: NewPolyRing and SymbolRange

Now using @ERR::Empty@ (maybe not ideal, but better)... Anna Maria Bigatti

12:00 Bug #1384: NewPolyRing and SymbolRange

My opinion:
What should SymbolRange do if there are no indets in the range?
empty list (non error)
What should... Anna Maria Bigatti

20:49 Slug #1390: CoCoA-5 test: radical too slow

On my computer with debugging the test @radical.cocoa5@ takes more than 60s. It is just about tolerably fast when I ... John Abbott

20:46 Slug #1390 (Closed): CoCoA-5 test: radical too slow

The CoCoA-5 test @radical.cocoa5@ is too slow: it takes longer than all the other CoCoA-5 tests combined.
The culp... John Abbott

20:39 Support #977: "universal denominator" (related with GroebnerFanIdeals)

What is the status of this issue? It is written in a way which suggests that an implementation exists somewhere, but... John Abbott

20:29 Bug #1294: CoCoA-5 tests may fail even if executed correctly

Not sure how to improve the situation here.
In a sense, all tests passing should mean that CoCoA-5 is "clean"; if ... John Abbott

14:19 Bug #1385 (Feedback): valgrind: reports 456byte leak

My fault: I have forgotten to @delete@ some memory obtained via @operator new@.
I have corrected the impl of @Signal... John Abbott

11:56 Feature #1374 (Feedback): Add function power to CoCoA-5

I have just added a manual entry for @power@. I also removed the keyword @power@ from the entry for @DiagMat@.
John Abbott

11:46 Bug #1356: CoCoA-5 header files: should use a common prefix for CPP variables which enforce read-once

Postpone because it is not urgent/important. It should be a simple change, but I prefer to do it when there is less ... John Abbott

11:43 Support #1368 (Feedback): Improve manual for mod

I have updated the manual entry; I think it is clear now.
John Abbott

11:35 Design #1352: cocoa5 (launch) script: sleep time

This has been working fine for about 2 months; so moving to _feedback_.
John Abbott

11:33 Support #1386: IsIndetPosPower: behaviour and manual page

John Abbott wrote:
> What should @IsIndetPosPower(x/x)@ give?
> Error or @false@?
> I expected @false@ but actuall... Anna Maria Bigatti

11:31 Support #1344 (In Progress): Clean out OBSOLESCENT

I have just commented out all fns in @obsolescent.cpkg5@ which have been there at least 4 years.
All CoCoA-5 tests p... John Abbott

11:25 Bug #1383 (Feedback): NewPolyRing on MS Windows

Anna Maria Bigatti

11:21 Bug #1382 (Closed): SEGV: should have been harmless

tested on MacOS. OK. Anna Maria Bigatti

10:02 Support #1387 (In Progress): John's visit Feb 2020

Here is a list of *PREPARATIONS* before the visit:
* issues which have been in _feedback_ for some time should be cl... John Abbott

08 Jan 2020

16:41 Bug #1382: SEGV: should have been harmless

All tests pass, and I have checked in.
John Abbott

16:05 Bug #1382 (Feedback): SEGV: should have been harmless

The clue from @valgrind@ was very helpful.
The fn @CommonDenom@ did not check for the case of an empty list (and the... John Abbott

15:47 Bug #1382: SEGV: should have been harmless

@valgrind@ suggests that the problem arose inside a call to @CommonDenom@ when it called @IsPolyRing@ (which called @... John Abbott

15:44 Bug #1382 (In Progress): SEGV: should have been harmless

According to gdb, the program crashed in line 48 of @SmartPtrIRC.H@
I wonder what that means 8-|
John Abbott

16:08 Bug #1383: NewPolyRing on MS Windows

I confirm it works fine on MacOS. Anna Maria Bigatti

15:03 Bug #1383: NewPolyRing on MS Windows

Both Bernhard and Peter confirm that everything is fine using the "interim" release 5.2.5; they did comment that the ... John Abbott

09:37 Bug #1383: NewPolyRing on MS Windows

According to Peter Mader it also works on Linux with this version, so I think we can close this thread. Bernhard Andraschko

09:19 Bug #1383 (Resolved): NewPolyRing on MS Windows

Can we now close this issue as it seems to be completely resolved using the latest release of CoCoA-5?
Anyway, a tes... John Abbott

01:02 Bug #1383: NewPolyRing on MS Windows

The error code displayed after calling the function ... Bernhard Andraschko

07 Jan 2020

21:59 Bug #1383: NewPolyRing on MS Windows

In any case we should add an example like this as a new "official" test.
John Abbott

16:31 Bug #1383: NewPolyRing on MS Windows

JAA says the bug is not present on current internal version of CoCoA-5 compiled and running on Linux.
The error me... John Abbott

16:29 Bug #1383 (Closed): NewPolyRing on MS Windows

Bernhard Andraschko reports that the following causes a crash on MS Windows 10 Pro (10.0.17763)... John Abbott

21:53 Support #1387: John's visit Feb 2020

* Perhaps arrange for the last few (1, 2, 3?) messages sent to the CoCoA mailing list to be easily accessible from th... John Abbott

21:51 Support #1387: John's visit Feb 2020

Here is a list of things to do (mostly references to other issues):
* fix SEGV bug (#1382)
* look at #1375 and #137... John Abbott

21:50 Support #1387 (Closed): John's visit Feb 2020

This issue is to gather things to do during John's visit.
John Abbott

21:30 Support #1386: IsIndetPosPower: behaviour and manual page

What should @IsIndetPosPower(x/x)@ give?
Error or @false@?
I expected @false@ but actually got an error.
John Abbott

21:22 Support #1386 (Closed): IsIndetPosPower: behaviour and manual page

There is no manual page for @IsIndetPosPower@.
John Abbott

20:51 Bug #1385: valgrind: reports 456byte leak

Here is the output from @valgrind@:... John Abbott

20:49 Bug #1385 (Closed): valgrind: reports 456byte leak

I ran @valgrind@ on @CoCoAInterpreter@ taking input from @/dev/null@ (_i.e._ empty input).
The resulting report sa... John Abbott

16:45 Bug #1384: NewPolyRing and SymbolRange

Here is a session sample:... John Abbott

16:42 Bug #1384 (Closed): NewPolyRing and SymbolRange

What should @SymbolRange@ do if there are no indets in the range?
What should @NewPolyRing@ do if the result of @Sy... John Abbott

16:07 Bug #1382: SEGV: should have been harmless

I was using CoCoA-5 to look for some examples to show the students. It was a surprise when it SEGV'd :-(
John Abbott

16:06 Bug #1382 (Closed): SEGV: should have been harmless

I get a SEGV with the following input (no SEGV if the number of loop iters is 100).... John Abbott

17 Dec 2019

12:25 Bug #1093 (In Progress): GUI: bugs and slugs

I have changed *@configure@* so that it sets a flag saying whether to build the Qt GUI; this is determined by a comma... John Abbott

16 Dec 2019

21:31 Bug #1093: GUI: bugs and slugs

Ulrich reported that the GUI fails to compile now that we are using *@nullptr@*.
I had a quick search online, and fo... John Abbott

12 Dec 2019

11:58 Slug #948: radical is slow (compared to singular) on these examples

As reported in the previous comment, example 1 was still a problem. I increased the extra time (to 2.5s), then the c... John Abbott

11:42 Slug #948: radical is slow (compared to singular) on these examples

After the change mentioned in issue #1375, the examples in comment 13 are now satisfactorily quick. The example in c... John Abbott

11 Dec 2019

17:40 Slug #948: radical is slow (compared to singular) on these examples

Anna Maria Bigatti wrote:
> John Abbott wrote:
> > My simple idea was just to add say 0.1 to the actual measured ti... Anna Maria Bigatti