Activity
From 12 Mar 2012 to 10 Apr 2012
10 Apr 2012
-
21:10 CoCoA-5 Bug #118 (Resolved): unistd and call to access in Main.C
-
21:10 CoCoA-5 Bug #118: unistd and call to access in Main.C
- To answer the question "why...?" in the last update: the fn @access@ returns 0 if the file exists, and -1 if it does ...
05 Apr 2012
-
15:36 CoCoA-5 Feature #128 (Closed): wordlist.txt generation
- Autocompletion depends on the file wordlist.txt
Right now we are still using the cocoa-4 wordlist (because we cannot... -
14:27 CoCoALib Feature #127 (In Progress): Convert DUPFF code to C++
- Convert the old factorizer C code "DUPFF" into C++.
-
14:26 CoCoALib Feature #126 (New): New datastructures directory
- Create a new datastructures directory to hold source code for impls of various datastructures (e.g. the various Distr...
-
14:23 CoCoALib Feature #125 (In Progress): Matrix equation solving; linear system solving
- Add code for solving linear systems. There are several subcases:
* generic case over a field
* full rank and not f... -
14:12 CoCoALib Feature #124: change long args in matrices into MachineInt (?)
- The args being considered are "indices"; we should be consistent regarding all sorts of index (well, at least non-neg...
04 Apr 2012
-
15:56 CoCoA-5 Bug #118: unistd and call to access in Main.C
- The purpose of the original code is unclear -- indeed it looks implausible/wrong....
-
15:20 CoCoALib Feature #124 (Rejected): change long args in matrices into MachineInt (?)
- For "public" functions (not member functions) like...
-
13:07 CoCoALib Feature #123 (New): IdealOfPoints with generic coeffs
- Think about the implementation of IdealOfPoints in the case of generic coefficients (_e.g._ in *@QQ(a)@*)
Implement ... -
09:37 CoCoALib Feature #122 (Closed): Porting "LinKer"
- This issue is *closed*; it is a *DUPLICATE* of #206
Port cocoa-4 C code about LinKer to cocoalib.
-
09:22 CoCoALib Feature #121 (Closed): Porting "IdealOfPoints"
- Port in cocoalib the cocoa-4 C code about BuchbergerMoeller.
An important step in it is the lifting from Fp --> QQ...
03 Apr 2012
-
21:48 CoCoALib Slug #120: LT over QQ: surprisingly slow
- My "noddy" program for computing GBases can do the whole computation in a few seconds...
-
21:08 CoCoALib Slug #120: LT over QQ: surprisingly slow
- Here is another suspect starting ideal in @QQ[x,y,z],Lex@
@[x^4 +x*y^2*z +y^4, x^3*y +x^2*z^2 +z^2]@
-
20:40 CoCoALib Slug #120 (New): LT over QQ: surprisingly slow
- The following should compute a LT ideal of a small ideal (using lex).
It takes longer than I would expect over QQ --... -
19:05 Bug #53 (Resolved): MSVC10 compilation
-
19:03 Bug #58 (Closed): MSVC10 - more things and overhead
- Sundry other changes to accomodate MSVC bugs.
Added some @#if@ conditionals as workarounds; ideally these should e... -
19:00 Bug #54 (Closed): MSVC10 - #include <iterator>
- Added include directives for @iterator@ in the cases where it was needed.
-
18:58 Bug #55 (Closed): MSVC10 - static member fields
- Exercising the option not to define static data members if their addrs are not needed, I have removed all such defns,...
-
18:53 Bug #56 (Closed): MSVC10 - unistd.h
- All references to @unistd.h@ have been removed. The code now compiles on Windows (as well as Linux & MacOSX). This ...
-
18:50 Bug #57 (Closed): MSVC10 - BOOST_SCOPE_EXIT
- The problem was that @BOOST_SCOPE_EXIT@ requires at least 1 arg, though this is not entirely evident from their docum...
-
17:30 CoCoALib Bug #119 (Closed): CoCoA4io
- The file @CoCoA4io@ should not be inside CoCoALib -- it belongs in CoCoAServer.
Move it... will lead to some consequ... -
15:41 CoCoA-5 Bug #118: unistd and call to access in Main.C
- Discovering that BOOST seems to offer a ready-made solution, and that @access@ is old-style C-library.
-
15:40 CoCoA-5 Bug #118 (Closed): unistd and call to access in Main.C
- Replace call to @access@ in Main.C (about line 192) by calls to BOOST filesystem fns such as @exists@ and @is_regular...
-
14:58 CoCoA-5 Bug #117: Added 3 times defn of isblank fn
- As far as I can tell BOOST does not offer such a simple fn.
-
14:44 CoCoA-5 Bug #117 (Closed): Added 3 times defn of isblank fn
- To enable compilation on MSVC, I had to add defn of @isblank@.
Currently there are 3 separate (but identical) defns ...
02 Apr 2012
-
16:26 CoCoA-5 Bug #88 (Closed): Makefile problem with GUI on linux
-
15:22 CoCoALib Feature #116 (Closed): ordering matrices with rational coefficients
30 Mar 2012
-
19:09 CoCoALib Feature #116 (Closed): ordering matrices with rational coefficients
- it is useful to allow rational coefficients (why not?) and appropriate conversion into ZZ when necessary (optimized O...
-
14:36 CoCoALib Bug #22: Rename PPMonoidEvZZ?
- We have not yet decided about internal impl names.
JAA still likes his suggestion made two posts ago.
-
14:34 CoCoALib Bug #22: Rename PPMonoidEvZZ?
- We don't have time to complete this change before 0.9950.
However we have decided that it is simplest for the user... -
12:55 CoCoALib Support #75: Documentation review by Caleo
- Alessandra reports:
# the examples are mostly OK; she reported some minor problems which J+A attended to immediately...
28 Mar 2012
-
14:29 CoCoA-5 Bug #115 (Closed): PP ordering bug
- The error was in Interpreter.C: I got the wrong "symmetry" with LessOrEqual....
-
13:53 CoCoA-5 Bug #115 (Closed): PP ordering bug
- ...
27 Mar 2012
-
13:28 CoCoA-5 Feature #18: Printing matrices: I/O unified style for CoCoA-5?
- John Abbott wrote:
> I do not like the "abandoned" square bracket at the end of the first line.
>
> Generally I pref... -
10:04 CoCoA-5 Feature #18: Printing matrices: I/O unified style for CoCoA-5?
- I do not like the "abandoned" square bracket at the end of the first line.
After speaking yesterday, we also conclud...
26 Mar 2012
-
19:11 CoCoALib Bug #114 (In Progress): Ideals of polynomials
- Currently operations special to ideals in polynomial rings are located in @SparsePolyRing.H@ -- this seems incorrect....
-
17:42 CoCoA-5 Feature #18: Printing matrices: I/O unified style for CoCoA-5?
- after using the "old style" for a while I'm getting more and more convinced that a matrix should also print its own r...
23 Mar 2012
-
17:02 CoCoALib Feature #113 (In Progress): Introduce PartialHom
- Currently CoCoALib does not distinguish between proper homs and partial homs.
Thus we can create a (partial) RingH... -
14:41 CoCoA-5 Feature #7: Automatic mapping between (some) rings
- Probably the simplest definition is simply that R1 is "simpler" than R2 if the construction of R2 passed explicitly v...
-
12:39 CoCoALib Support #75: Documentation review by Caleo
- Alessandra reports:
* doc for almost all rings (except @ring@, @RingElem@) needs to be better organized
* reference... -
11:37 CoCoALib Support #112 (New): automatic creation of all function signatures
- Is it possible to create a readable collection of all function signatures and (more difficult) to link to the correct...
22 Mar 2012
-
16:05 Bug #57: MSVC10 - BOOST_SCOPE_EXIT
- I wonder why the only reports I can find on the internet about problems with @BOOST_SCOPE_EXIT@ and Visual C++ are ou...
-
15:20 CoCoA-5 Feature #90 (Closed): Make the new fn CoefficientsWRT available in C5
-
13:50 CoCoA-5 Feature #90: Make the new fn CoefficientsWRT available in C5
- John Abbott wrote:
> At the moment it is not clear to JAA what the CoCoALib interface should be if we adopt the RING...
21 Mar 2012
-
16:18 CoCoA-5 Feature #90: Make the new fn CoefficientsWRT available in C5
- Here are some arguments in favour of the interface which wants a list of RINGELEM to specify which indets:
* JAA bel... -
15:22 CoCoALib Bug #111: Mod fn for computing remainder
- The use of @tdiv@ functions produces a (pleasing) sign symmetry:
# namely @A%B = - ((-A)%B) = - A%(-B) = (-A)%(-B)@
...
20 Mar 2012
-
16:21 CoCoA-5 Bug #108 (Closed): Unhandled division by zero in FFp
-
16:03 CoCoALib Bug #111 (Closed): Mod fn for computing remainder
- The doc says the result is least non-neg remainder...
BUT the code uses @mpz_tdiv@ which "truncates" towards zero, s... -
15:55 CoCoALib Feature #50: Polynomial content
- Created two fns:
* *@content@* computes "content" of the coeffs, result is in CoeffRing
* *@ContentWRT@* computes "co... -
10:10 CoCoALib Feature #107: Recognizing finite fields
- Other functions which finite fields should offer:
* @IsPthPower@
* @IsPthPower2@ says whether arg is a P^k-th power (...
19 Mar 2012
-
18:01 CoCoA-5 Bug #109 (Closed): SmoothFactor should allow large first arg
-
14:51 CoCoA-5 Bug #109 (Closed): SmoothFactor should allow large first arg
- Second arg should be small (e.g. up to 2^32-1), but first arg may be big without any problems...
-
17:14 CoCoA-5 Bug #108 (Resolved): Unhandled division by zero in FFp
- Fixed, but the error is indicated at the operator...
-
14:36 CoCoA-5 Bug #108 (Closed): Unhandled division by zero in FFp
- Here's a sample case...
-
16:45 CoCoA-5 Bug #110: Surprise return type for GCD of a list of ints
- The function @AsINT@ can be used as a workaround:...
-
16:19 CoCoA-5 Bug #110 (Closed): Surprise return type for GCD of a list of ints
- JAA expected GCD of a list of INTs to produce an INT; instead it produces a RINGELEM (in ZZ)...
-
16:11 CoCoALib Feature #40: Squarefree factorization - Alessio d'Ali`
- Alessio has not found any criterion for a good order in which to "eliminate" the indets.
He did suggest offering an ... -
11:56 CoCoALib Feature #107 (Closed): Recognizing finite fields
- The case of polynomials over finite fields can often be handled specially. We must add functions to facilitate the d...
-
11:45 CoCoA-5 Feature #105: Add I*f and f*I (RINGELEM and IDEAL)
- Just a quick note reporting what we'd already said vocally: both left and right multiplication should be enabled (par...
-
11:42 CoCoA-5 Bug #104: Misprints suggestions: Z --> ZZ
- Are you asking to add
# special checks for the names "Z" and "Q" in a context where a ring is to be expected?
# spe...
18 Mar 2012
-
15:19 CoCoALib Bug #22: Rename PPMonoidEvZZ?
- Here is an alternative suggestion (affecting the names of all PPMonoids).
The underlying principle is that an obje...
16 Mar 2012
-
18:01 CoCoALib Feature #51: polynomial coefficient extraction w.r.t. variable
- JAA has made a first impl.
Still unsure about the interface (_i.e._ the type of the result & also the type of the par... -
17:47 CoCoALib Bug #21 (Closed): Rename NumTheory and NumTheoryQQ
- The simplest solution seemed to be to merge @NumTheoryQQ@ into @NumTheory@. This avoids a possibly confusing, seemin...
-
12:02 CoCoALib Support #75: Documentation review by Caleo
- Alessandra reports:
# documentation for @ring@ & @RingElem@ is mostly OK (but still not complete)
@ex-RingElem1@ ... -
07:42 CoCoA-5 Feature #106 (In Progress): I:f (IDEAL and RINGELEM) -- operator colon
- cocoa-4 had no warning for I:xy being intepreted as (I:x)*y, but cocoa-5 does!
So we can resume that syntax.
Make... -
07:38 CoCoA-5 Feature #105 (Closed): Add I*f and f*I (RINGELEM and IDEAL)
- Multiplication of RINGELEM and IDEAL is missing.
Add it to CoCoALib and CoCoA-5.
(Multiply, product: keys for "Se...
15 Mar 2012
-
12:31 CoCoA-5 Bug #104 (Closed): Misprints suggestions: Z --> ZZ
- CoCoA-5 is very helpful with suggestions on misprints.
Is it possible to improve this case? i.e. suggest "ZZ" as we... -
11:57 CoCoA-5 Bug #103 (Closed): Bad error mesg using operator ":"
- The session excerpt below contains an erroneous error message.
I think the operator should be just ":" -- it certain...
12 Mar 2012
-
11:09 CoCoA-5 Bug #98 (Resolved): RealRoots should use IsRational
-
11:09 CoCoA-5 Bug #98: RealRoots should use IsRational
- Fixed the bug -- actually quite easy.
A as consequence I "improved" the defn of @content@.
Also available in: Atom