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From 19 Jun 2013 to 18 Jul 2013

11 Jul 2013

17:08 CoCoALib Feature #385: Design new errors using inheritance
The (work in progress) list of errors is now in the documentation (cvs will help us getting to the final design)
@do...
Anna Maria Bigatti
14:50 CoCoALib Feature #92: Error Codes: BadIndex
What is a reasonable syntax for adjoining a suppl mesg to an error object?
(A) Anna suggests a fn-call style: *@Inde...
John Abbott
14:40 CoCoALib Feature #92: Error Codes: BadIndex
Note: our current thinking is to have only very few types of error, and allow each error object to contain a _supplem... John Abbott

10 Jul 2013

15:28 CoCoALib Feature #385: Design new errors using inheritance
After a long discussion (yesterday) with Anna, we concluded that:
# we are too ignorant about catching/handling excep...
John Abbott

08 Jul 2013

14:27 CoCoA-5 Design #83: C++11 compatibility questions
C++11 has a more flexible exception mechanism than the one in C++. Reconsider the design of CoCoALib exceptions (see... John Abbott
14:24 CoCoALib Feature #385: Design new errors using inheritance
BOOST exceptions are quite sophisticated. Since exceptions currently play a very minor role in CoCoALib, *I am incli... John Abbott
12:10 CoCoALib Feature #385: Design new errors using inheritance
The following URL @http://stackoverflow.com/questions/9387377/how-to-design-exception-types-in-c@ suggests deriving a... John Abbott
11:18 CoCoALib Feature #385: Design new errors using inheritance
The current error mechanism allows for *error messages in different languages* -- and the user can change language ar... John Abbott
11:10 CoCoALib Feature #385 (In Progress): Design new errors using inheritance
So that C++'s *@try...catch@* mechanism can be used easily we should redesign CoCoALib's error codes so that they are... John Abbott

05 Jul 2013

15:04 CoCoA-5 Feature #384 (Closed): IsZero for matrix
The built-in fn *@IsZero@* works for many types (@INT, RAT, RINGELEM, MODULEELEM@ and @IDEAL@).
Should it work for m...
John Abbott

04 Jul 2013

17:06 CoCoALib Feature #383: Resolution/morse: integrate Mario Albert's code into CoCoALib
The inclusion of Mario's code is essentially complete.
There are still several questions about its public interface.
John Abbott

28 Jun 2013

14:09 CoCoA-5 Feature #380: Add Frobby functions to cocoa-5
Corrected Frobby fn names: in example file, test file & RegsiterServer file..
Still need discuss about Register se...
John Abbott

27 Jun 2013

19:05 CoCoALib Feature #383 (In Progress): Resolution/morse: integrate Mario Albert's code into CoCoALib
John and Mario have been incorporating his code into CoCoALib.
We have also cleaned the code somewhat. Perhaps Co...
John Abbott
19:00 CoCoALib Feature #383 (In Progress): Resolution/morse: integrate Mario Albert's code into CoCoALib
Mario Albert has written an implementation for computing resolutions & Betti numbers.
Incorporate it into CoCoALib
John Abbott
17:05 CoCoA-5 Bug #382 (Closed): Subtle bug with CoeffEmbeddingHom
This lines cause crashing (bug already tracked in CoCoALib)... Anna Maria Bigatti

26 Jun 2013

19:49 CoCoA-5 Feature #381 (Resolved): Emacs User Interface: Easier binding for sending a line to cocoa-5
These are the two bindings:
C-return (works in graphical emacs) [note: *one* movement]
C-c return (works both in...
Anna Maria Bigatti
16:45 CoCoA-5 Feature #381 (Closed): Emacs User Interface: Easier binding for sending a line to cocoa-5
set an easier binding (easier than C-c C-l) for sending a line to cocoa-5.
Macaulay-2 mode sets f11, but that's unco...
Anna Maria Bigatti
12:12 CoCoA-5 Feature #380 (In Progress): Add Frobby functions to cocoa-5
functions in ExternalLib-Frobby have been ported: prefix is *Frb*
Might change names slightly.
Manual partially upd...
Anna Maria Bigatti
12:07 CoCoA-5 Feature #380 (Closed): Add Frobby functions to cocoa-5
Anna Maria Bigatti

20 Jun 2013

14:46 CoCoALib Design #377: IsDivisible -- exact semantics?
JAA continues to believe that attempting to compute @0/0@ in any ring should give an error. Giving an answer is almo... John Abbott

19 Jun 2013

19:01 CoCoALib Feature #379 (Closed): Iter for subsets/tuples
Add new iters for subsets/tuples.
[JAA see file @ShortTerm/oscar.C@]
John Abbott
17:16 CoCoA-5 Bug #378 (Closed): Ungraceful behaviour: Source inside For loop
The following input produces an unexpected effect:... John Abbott
12:20 Bug #238: Cleaner CVS?
Another argument: The CVS merged some Makefile_dependencies and when I then tried to compile I just got
Makefile_...
Christof Soeger
10:57 CoCoALib Design #377 (In Progress): IsDivisible -- exact semantics?
The problem with dividing @4/2@ in @ZZ/6@ is that the true answer is @2@ in @ZZ/3@ -- a different ring! The answer ... John Abbott
10:28 CoCoALib Design #377 (Closed): IsDivisible -- exact semantics?
While dealing with issue #248 I realised that the exact semantics of @IsDivisible@ are not clear.
The problem is whe...
John Abbott
 

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