Activity
From 23 Feb 2019 to 24 Mar 2019
20 Mar 2019
19 Mar 2019
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17:04 CoCoA-5 Support #1258 (Closed): Manual page for CantStop
- @CantStop.cpkg5@ now works. There should be a manual page at least for @PlayCantStop@.
Perhaps some of the other fn... -
15:16 CoCoA-5 Feature #1246 (In Progress): Revive old CoCoA4 package called "cocoa5.cpkg"
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15:15 CoCoALib Bug #1250 (Feedback): SEGV: CoCoALib with Normaliz in multithreading
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12:12 CoCoALib Design #1257 (Feedback): C++14: use nullptr
- I have now updated the .C files too. Everything compiles and runs.
It is possible that I have missed some 0 (that w...
18 Mar 2019
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18:53 CoCoALib Design #1257 (In Progress): C++14: use nullptr
- I have done the header files. There may still be one or zeroes which escaped me (but I hope not). Next are the .C f...
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11:24 CoCoALib Design #1257 (Closed): C++14: use nullptr
- From C++11 there is the constant *@nullptr@* for the null pointer.
Update our (C++) code to use it!
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14:42 CoCoA-5 Feature #1246: Revive old CoCoA4 package called "cocoa5.cpkg"
- Here are the aspects to be addressed next:
* how to serialize rings (_i.e._ follow previous format, but passing ring... -
14:38 CoCoA-5 Feature #1246: Revive old CoCoA4 package called "cocoa5.cpkg"
- Anna has cleaned the file so that it is syntactically OK.
Now we must look at the semantics. -
14:33 CoCoALib Support #1161: Split NumTheory.C into several smaller files
- Current state:
* *@NumTheory.C@*
* *@NumTheory-ContFrac.C@*
* *@NumTheory-CoprimeFactorBasis.C@*
* *@NumTheory-pr... -
14:10 CoCoALib Feature #1227: exgcd; solve Bezout equation
- I prefer to defer this question until later, until when we have decided what exactly @exgcd@ should do (and whether i...
15 Mar 2019
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17:59 CoCoALib Bug #1256: RingID: different values in test-output on different platforms
- Anna uses @clang@ on MacOS, while I use @g++@ on Linux.
We get different outputs for @test-output@: its seems that t... -
17:56 CoCoALib Bug #1256 (Closed): RingID: different values in test-output on different platforms
- In @test-output@ Anna and I get different outputs (due to different RingIDs) because we use different platforms.
I... -
17:31 CoCoALib Bug #1250: SEGV: CoCoALib with Normaliz in multithreading
- I have changed the @configure@ script so that it prints out a clearer summary.
I have changed the @Makefile@ so that... -
17:25 CoCoA-5 Feature #1236 (Feedback): Add "socket" devices
- Anna prefers the longer field names. Code cleaned, and checked-in. Anna will test.
Doc updated.
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15:41 CoCoA-5 Feature #1236: Add "socket" devices
- I have updated the CoCoA-5 manual.
I have modified the code so that @OpenSocket@ returns a record with 4 fields: *...
14 Mar 2019
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13:35 CoCoALib Design #950: factor and SmoothFactor for integers --> FactorINT, FactorINT_TrialDiv, FactorINT_PollardRho
- Here is an effect of the idea of testing the remaining factor for primality....
12 Mar 2019
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16:40 CoCoA-5 Bug #545: Compiler g++ 4.2.1 (clang-503.0.40) on MacOSX 10.9: warnings and errors
- Problem with PIE (#3) resurfaced because of a line swap in configure.
Just in case it happens again:
this was solve...
11 Mar 2019
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19:18 CoCoALib Feature #1249: principal ideal has a Gbasis
- Done and partly tested.
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18:53 CoCoALib Feature #1249: principal ideal has a Gbasis
- Here are some more minor points (after speaking to Anna on the phone):
* Anna was concerned about potential cost if ... -
19:16 CoCoALib Design #1255: Ideals with trivial GBasis
- [by John Abbott: moved here from #1249]
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Also if the gens happen to have coprime LTs w... -
19:14 CoCoALib Design #1255 (New): Ideals with trivial GBasis
- If an ideal has a single (non-zero) generator then that generator is automatically a Gbasis.
CoCoALib does not curre... -
16:03 CoCoALib Bug #1250: SEGV: CoCoALib with Normaliz in multithreading
- The distribution had a precompiled @PREPROCESSOR_DEFNS.H@ and @autoconf.mk@ disabling @CoCoA_THREADSAFE_HACK@.
A par... -
15:16 CoCoALib Design #1225: Move to C++14 (skipping C++11)
- John Abbott wrote:
> JAA has checked in latest changes. Hope they work for Anna!
whateve that was, it compiles a...
07 Mar 2019
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09:49 CoCoA-5 Design #83 (In Progress): C++11 compatibility questions
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09:48 CoCoALib Feature #82: C++11 compatibility questions
- Warning with clang:...
06 Mar 2019
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18:16 CoCoALib Design #1225: Move to C++14 (skipping C++11)
- JAA has checked in latest changes. Hope they work for Anna!
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17:17 CoCoALib Feature #1249 (In Progress): principal ideal has a Gbasis
- Also if the gens happen to have coprime LTs wrt to current ordering then they are a GBasis. Might be useful to have ...
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16:34 CoCoALib Bug #1248: MinPolyQuot: guaranteed and ideal without GBasis
- Fixed.
Now, *guaranteed* computes GBasis if missing, so result is guaranteed.
Testing.
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15:10 CoCoALib Feature #1254 (New): New function: MinPoly for pseudo-zero-dimensional ideals
- For min polys it might be possible to work with a sub-ideal in a subring. For example,...
05 Mar 2019
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18:39 CoCoALib Design #1225 (In Progress): Move to C++14 (skipping C++11)
- So far I have done the following:
* revised and renamed script @cxx03.sh@ into @cxx14.sh@
* revised @configure@ scr... -
16:40 CoCoALib Bug #1248: MinPolyQuot: guaranteed and ideal without GBasis
- The CoCoA-5 test @test-ApproxSolve.cocoa5@ failed with wrong output: there should have been no output, instead a warn...
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16:13 CoCoALib Bug #1248 (In Progress): MinPolyQuot: guaranteed and ideal without GBasis
- Two more comments:
* *(1)* my preference is that computations in CoCoALib be guaranteed correct unless the caller ex... -
16:08 CoCoALib Bug #1248: MinPolyQuot: guaranteed and ideal without GBasis
- For min polys it might be possible to work with a sub-ideal in a subring. For example,...
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16:36 CoCoA-5 Support #1252 (New): ShapeLemma: no manual entry
- The CoCoA-5 test file @test-ApproxSolve.cocoa5@ calls the function @ShapeLemma@, but this function is not in the CoCo...
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15:57 CoCoALib Feature #1103 (In Progress): Pseudo-zero-dim ideals
- Note also that if we map into a temporary ring without redundant indets, then we can also choose a convenient term-or...
04 Mar 2019
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18:04 CoCoALib Design #1223 (Closed): NewPolyRing default indet names
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18:00 CoCoA-5 Feature #1247 (Closed): sleep function
- Checked in. Documentation. Tested. Works on Anna's computer.
Closing.
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16:14 CoCoALib Feature #1251 (Closed): New function: radical for monomial ideal
- As for zero-dimensional ideals, implement it so we can pass it to CoCoA-5.
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12:30 CoCoA-5 Bug #1239 (Closed): CartesianProductList: case of just 1 entry in list
- JAA notes that the product of zero factors should return a list containing 1 element which is a 0-tuple (namely, the ...
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12:21 CoCoALib Bug #1250: SEGV: CoCoALib with Normaliz in multithreading
- ...
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12:16 CoCoALib Bug #1250: SEGV: CoCoALib with Normaliz in multithreading
- Looking for possible problems in the logs from January to June 2018...
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12:08 CoCoALib Bug #1250 (In Progress): SEGV: CoCoALib with Normaliz in multithreading
- We are searching for suspect code. We are working blind (since we do not have any experience with parallel execution...
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12:06 CoCoALib Bug #1250 (Closed): SEGV: CoCoALib with Normaliz in multithreading
- Bruns reports (email 2019-03-02) the following SEGV bug:...
01 Mar 2019
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17:34 CoCoALib Feature #1249 (Closed): principal ideal has a Gbasis
- If and ideal has a single (non-zero) generator then that generator is automatically a Gbasis.
CoCoALib does not curr... -
17:20 CoCoALib Bug #1248: MinPolyQuot: guaranteed and ideal without GBasis
- The cause was an incompatibility:
* *(A)* if the ideal supplied has no G-basis then verification was disabled (since... -
17:14 CoCoALib Bug #1248 (Closed): MinPolyQuot: guaranteed and ideal without GBasis
- Today we noticed that @ex-Verification1@ failed. What happened is that *@MinPolyQuot@* was called with a (principal)...
26 Feb 2019
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17:21 CoCoALib Feature #259: Squarefree(?) GCD-free basis
- Should *@GCDFreeBasis_BigInt@* and *@GCDFreeBasis_RingElem@* be renamed to *@CoprimeFactorBasis_BigInt@* and *@Coprim...
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17:07 CoCoALib Feature #4: Squarefree GCD-free basis
- I'm postponing this issue because we already have "coprime factor basis", and it is not yet clear to me whether we ne...
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16:42 CoCoALib Support #1161: Split NumTheory.C into several smaller files
- In terms of compilation speed, it is probably not necessary to split @NumTheory.C@; my computer compiled the current ...
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16:26 CoCoALib Design #1223 (Feedback): NewPolyRing default indet names
- This has been "resolved" for 5 months. Moving to "feedback". Hope to close while I'm in Genoa.
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16:17 CoCoALib Design #1225: Move to C++14 (skipping C++11)
- Check that the new configuration system works on several different platforms (incl. Microsoft???)
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11:42 CoCoA-5 Feature #1247 (In Progress): sleep function
- If we use C++11 then this is a relatively simple task (since C++11 already offers a decent "sleep function").
It's... -
11:38 CoCoA-5 Feature #1247 (Closed): sleep function
- Consider adding a "sleep function" to CoCoA-5.
This could be useful in an interactive context (_e.g._ the "Can't S...
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