Activity
From 27 Apr 2012 to 26 May 2012
25 May 2012
- 14:42 Feature #167: Integer operations
- Problem originally arose in CoCoA-5, but the solution lies in changes to CoCoALib.
- 14:41 Feature #167 (In Progress): Integer operations
- The hard part will be all the consequential changes.
24 May 2012
- 16:19 Feature #167 (Closed): Integer operations
- While adding *@IsDivisible@* for integers, it was not clear where to put the declarations and definitions. So far th...
22 May 2012
- 12:06 Feature #165: FractionField -- only of TrueGCDDomain?
- I've just looked at the code for @FractionFieldImpl@. I must make a separate impl for arithmetic if GCD is not avai...
21 May 2012
- 17:11 Feature #165 (In Progress): FractionField -- only of TrueGCDDomain?
- After speaking to Anna and Renzo, we concluded that it is better to keep @FractionField@ general.
Anna proposed cr... - 15:09 Feature #165: FractionField -- only of TrueGCDDomain?
- John Abbott wrote:
> JAA proposes: the base ring of a *@FractionField@* must be a @TrueGCDDomain@ (and this must be ... - 14:36 Feature #165: FractionField -- only of TrueGCDDomain?
- If my proposal is accepted, someone will have to look through the existing code and remove any checks which will have...
- 12:51 Feature #165 (Closed): FractionField -- only of TrueGCDDomain?
- I've started implementing @IsTrueGCDDomain@.
I noticed that the ctor for a *@FractionField@* checks that the base ... - 15:59 Feature #40: Squarefree factorization - Alessio d'Ali`
- Alessio has a first solid version of his report.
We spoke of how to generate tables of timings automatically; Alessi... - 11:50 Feature #41: Squarefree factorization - overhead
- Oh dear, I keep forgetting to log time here. I'll just make a guess.
16 May 2012
- 10:16 Support #160: Cleanup doc for rings
- A richer template for the documentation is offered in @empty.txt@ for homogeneity in class descriptions and facilitat...
- 07:46 Support #160 (Closed): Cleanup doc for rings
- Some documentation has already been rewritten.
Check that all files have appropriate links to operations in the righ... - 07:57 Support #161 (New): Convert old "task table" into redmine
- Redmine seems a lot easier to keep up-to-date than our old task table page.
We should then remove the task table and...
11 May 2012
- 19:01 Bug #155 (Closed): gcd: multivariate over non-prime finite field
- 12:36 Support #75: Documentation review by Caleo
- Alessandra reports that the doc for *@PPMonoid@* did not explain clearly what a PPMonoid is, nor why CoCoALib offers ...
10 May 2012
- 18:34 Bug #135 (In Progress): Revise interface to SmallFpImpl & friends
- 18:34 Bug #135: Revise interface to SmallFpImpl & friends
- Added fns equivalent to many of the procedures for arithmetic.
Needed to add several other fns. Development proce... - 18:16 Feature #157: Separate ThreadsafeCounter from symbol.C
- Consider making a BOOST-free (and possibly non-threadsafe) version so that CoCoALib can be compiled without requiring...
- 16:40 Feature #157 (Closed): Separate ThreadsafeCounter from symbol.C
- The *@ThreadsafeCounter@* recently added to @symbol.C@ will be useful elsewhere (_e.g._ in rings for the ring counter...
- 17:16 Feature #156: Brand new symbol(s)
- It is simpler to move the "special" ctor into the private zone, and remove the *@AnonymousMarker@*. This should take...
- 16:48 Feature #156: Brand new symbol(s)
- Check through existing code, and use anonymous symbols where appropriate. Then check everything!
- 16:38 Feature #156: Brand new symbol(s)
- I have opted not to implement *@IsAnonymous@* because I cannot think of when it might actually be useful.
The curr... - 15:53 Feature #156 (In Progress): Brand new symbol(s)
- JAA has completed a first impl. The new public fns (pseudo-ctors) are:
* *@NewSymbol()@* which creates a single new... - 15:44 Bug #155 (Resolved): gcd: multivariate over non-prime finite field
- A first impl of nameless symbols together with a change to line 1480 in @TmpGReductor.C@ has solved the problem.
A...
09 May 2012
- 17:18 Feature #156: Brand new symbol(s)
- The current suggestion for imlpementation is the following:
* internally an anonymous symbol has empty head
* the p...
08 May 2012
- 14:32 Feature #142: Improve threadsafety
- Anna Maria Bigatti wrote:
> *@Elim@* (and a few other functions) create a temporary ring.
Yes. Temporary rings are ... - 12:48 Feature #142: Improve threadsafety
- John Abbott wrote:
> No doubt the problem is due to the temporary rings (inside @Elim@) not self destroying when the... - 09:49 Feature #156: Brand new symbol(s)
- JAA suggests that internally the head of an "anonymous" symbol be the empty string; the accessor function then checks...
07 May 2012
- 18:43 Feature #156: Brand new symbol(s)
- John Abbott wrote:
> Here are some more proposals for the head: *@??@* or *@#@* or *@_@*
>
> (...)
>
> Right now ... - 17:15 Feature #156: Brand new symbol(s)
- Here are some more proposals for the head: *@??@* or *@#@* or *@_@*
Printed value would look like: *@3*??[17]^... - 17:01 Feature #156: Brand new symbol(s)
- This is hardly important, but might be beneficial in a multithreaded environment. Possibly it would be "cleaner" too...
- 16:58 Feature #156: Brand new symbol(s)
- Here are 3 proposals for new PPMonoid pseudo-ctor signatures:...
- 16:54 Feature #156: Brand new symbol(s)
- JAA's first suggestion is to create "gensyms" containing a single index (in the hope that the index will not overflow...
- 16:46 Feature #156 (Closed): Brand new symbol(s)
- The pseudo-ctors for PPMonoids all require that names be specified for the indets.
It can occur that we want to cr... - 17:06 Bug #155: gcd: multivariate over non-prime finite field
- The guilty line is 1480 in *@TmpGReductor.C@*
My example used an unindexed *@x@* in the field of coeffs -- this tri... - 16:08 Bug #155 (Closed): gcd: multivariate over non-prime finite field
- GCD produces an unexpected error. Here is an example:...
- 15:46 Feature #40: Squarefree factorization - Alessio d'Ali`
- Alessio has started writing his report on Bernardin's article.
There are some typos in the article. JAA has given... - 14:30 Bug #154 (In Progress): GCD normalization (e.g. monic)
- GCDs in a poly ring over a field are defined only upto a constant factor.
If the field is a FractionField then there... - 12:47 Feature #50: Polynomial content
- The function *@ContentWRT@* gives result with strange scale factors sometimes....
- 11:59 Feature #69 (Closed): p-th root
- This issue has effectively been replaced by #107.
- 11:57 Feature #107: Recognizing finite fields
- Should there also be a fn called *@PthPower@*?
I note that *@IsPthPower2@* and *@PthRoot2@* have become forgotten;...
04 May 2012
- 21:38 Feature #153: Shorter simpler names for some bool3 values and functions
- Spent about 45 mins discussing with Anna. Differences of opinion remain.
- 21:36 Feature #153 (Closed): Shorter simpler names for some bool3 values and functions
- We need shorter names for *@IsDefinitelyTrue@* and *@IsDefinitelyFalse@*.
Also need a shorter way of expressing th... - 21:30 Feature #138: Automatic conversion from bool3 to bool?
- I have modified *@operator<<@* for OpenMath streams so that they handle explicitly machine integers (rather than *@Ma...
- 12:36 Support #75: Documentation review by Caleo
- Alessandra reports:
* the examples 2,3,4 of *@ex-RingWeyl@* are almost identical -- this cannot be what is intended!
... - 12:13 Feature #152 (Closed): Replace bool3 by tribool
- In some quiet moment switch to using BOOST's *@tribool@* (or C++11 equivalent if it exists).
It seems pointless try...
03 May 2012
- 15:32 Feature #151: Iterated CanonicalHom
- There is already some code called *@TmpChainCanonicalHom@* in @CanonicalHom.[HC]@: it looks whether there is a "chain...
- 15:25 Feature #151 (New): Iterated CanonicalHom
- Implement *@NaturalMap@* and iterated *@CanonicalHom@*
- 15:26 Feature #150: RingOf rather than owner? (and than AmbientRing, ...)
- *@RingOf@* can be applied to: ideal, RingElem, matrix, HomogList.
- 15:03 Feature #150 (In Progress): RingOf rather than owner? (and than AmbientRing, ...)
- In CoCoA-5 to get the ring to which a RingElem belongs we use the fn *@RingOf@*.
Currently in CoCoALib the analogous...
02 May 2012
- 19:37 Bug #149 (New): Makefile dependencies
- There are problems with dependencies for optional external libraries.
How to make these dependencies visible only ...
01 May 2012
- 11:44 Feature #147 (In Progress): Buchberger-Moeller: impl via modular reduction
- Impl the idea presented in AKR "Zero-dim Schemes" which uses modular reduction to get the form of the answer quickly ...
- 11:39 Feature #146 (New): Buchberger-Moeller: input conversions
- Variants of BM which accept more convenient input (e.g. points or 0-dim ideals).
Simply convert inputs to sets of ... - 11:37 Feature #145 (New): Buchberger-Moeller: fast modular impl
- Impl BM over a small prime finite field. Aim for speed.
Input ideals are represented as multiplication matrices (... - 11:35 Feature #144 (Closed): Buchberger-Moeller: generic impl
- Implement generic BM algorithm over any field.
Aim is to make impl clean rather than fast.
Each input ideal is re... - 10:17 Feature #143 (In Progress): Buchberger-Moeller (parent task)
- Robbiano wants to have Buchberger-Moeller in C5. It makes most sense to implement it in CoCoALib and then make it vi...
30 Apr 2012
- 17:58 Feature #142: Improve threadsafety
- If ref counting is removed (seems to be highly desirable to avoid it in multithreaded programs) then CoCoALib needs t...
- 17:51 Feature #142 (In Progress): Improve threadsafety
- Currently CoCoALib can be made (largely?) threadsafe by compiling with the flag *@-DCoCoA_THREADSAFE_HACK@*. As its ...
27 Apr 2012
- 16:29 Feature #125: Matrix equation solving; linear system solving
- Implemented the chosen names.
Created/corrected CoCoALib doc for the new fns.
Added CoCoALib example program *@ex-m... - 15:06 Feature #125: Matrix equation solving; linear system solving
- A quick count using Google suggests that *@LinSolve@* as about twice as popular as *@MatSolve@*. Anna points out tha...
- 15:00 Feature #50: Polynomial content
- Tests and doc are already done for CoCoA-5.
Still missing in CoCoALib - 12:49 Support #75: Documentation review by Caleo
- Alessandra reports
* finished *@BigInt@*, *@BigRat@* and *@MachineInt@* (doc and examples)
* *@bool3@* doc was poor; ... - 12:14 Support #140 (Closed): Doc & example for convert
- Alessandra reported (some time ago) that the doc for *@convert@* was rather unclear -- she could not figure out how t...
- 12:10 Feature #138: Automatic conversion from bool3 to bool?
- John Abbott wrote:
> The BOOST equivalent of @bool3@ is called @tribool@. It offers automatic conversion to and from... - 11:30 Feature #139 (Closed): Usefulness of ring casting fns (remove AsPolyRing, etc.)
- Caleo pointed out that it is unclear what *@AsFractionField@* does.
JAA has already noticed that it is a nuisance ha... - 10:50 Bug #135: Revise interface to SmallFpImpl & friends
- Confirmed need for major redesign.
Current main doubt is how public I should be about the type *@SmallFpImpl::valu...
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