Activity
From 24 Feb 2017 to 25 Mar 2017
20 Mar 2017
- 14:26 CoCoA-5 Support #1023: CoCoAManual for verbosity: how to find which levels? how to find which functions?
- I like the idea of @<key>verbose</key>@. KISS!
- 13:23 CoCoA-5 Support #1023: CoCoAManual for verbosity: how to find which levels? how to find which functions?
- I noticed in the new CoCoA-5 manual entry for ApproxPointsNBM there are some incomplete phrases about what various ve...
- 09:00 CoCoA-5 Feature #737 (In Progress): Elementary transcendental functions (sin, cos, tan, log, exp)
17 Mar 2017
- 16:18 CoCoA-5 Design #998 (Feedback): Emacs UI: sending empty input from cocoa5 buffer
- This was done some while ago. I've been using the revised version of @cocoa5.el@ for at least a month without any pr...
- 16:12 CoCoA-5 Bug #1002 (Feedback): Emacs UI: cocoa5-send-line skips too many chars
- I made a change to the regexp a while ago. All the examples in the comments above seem to work in a reasonable way.
- 15:48 CoCoALib Feature #1033 (In Progress): Split poly into homog parts
- > In some ways the "eat up" version appeals to me more; though it might discourage casual use... (would that matter?)...
- 15:16 CoCoALib Feature #1033: Split poly into homog parts
- I'm against this idea, because I think it might be badly misused.
I see you want to apply it to IsInRadical for a ... - 13:50 CoCoALib Feature #1033: Split poly into homog parts
- If we do choose to introduce such a function, what should its name be?
- 11:17 CoCoALib Feature #1033 (Closed): Split poly into homog parts
- Introduce new function to split a poly into its homog parts.
What should the result be?
* @vector<RingElem>@ whe... - 14:15 CoCoA-5 Bug #1029 (In Progress): Readline: does not recognize interrupts
- I'm still searching for a "ready-to-eat" solution on the internet, and am also reading the readline documentation.
... - 13:19 CoCoA-5 Support #1034 (New): Improve error message when args to (infix operator) IsIn have incompatible types
- The infix operator *@IsIn@* accepts many different combinations of arg types.
However, for some non-sensical combina... - 11:13 CoCoA-5 Bug #1032: IsInRadical: fragile code
- Here are some examples which suggest that it may be better to decompose a poly into its homog parts when testing memb...
- 11:11 CoCoA-5 Bug #1032: IsInRadical: fragile code
- Here are some cases where behaviour is not ideal:...
- 11:07 CoCoA-5 Bug #1032 (Closed): IsInRadical: fragile code
- The current impls of @IsInRadical@ and @MinPowerInRadical@ are fragile: they give errors when they should/need not.
- 11:03 CoCoA-5 Support #1031: ScalarProduct: exact defn and manual page
- The manual page seems to be very wrong! It should probably be completely rewritten *after* we have decided exactly w...
- 11:00 CoCoA-5 Support #1031 (New): ScalarProduct: exact defn and manual page
- We must establish the exact definition of *@ScalarProduct@* and rewrite the manual page accordingly.
- 10:55 CoCoA-5 Feature #633: New operations? ScalarProduct(MODULELEM,LIST), MATRIX * MODULELEM
- If we regard @ScalarProduct(A,B)@ as being equivalent to @sum([A[i]*B[i] | i in 1..len(A)])@ then @ScalarProduct@ sho...
14 Mar 2017
- 14:18 CoCoALib Feature #1030: IsInRadical: case of homog ideal
- John Abbott wrote:
> I think that if the ideal @I@ is homog then @IsInRadical(f,I)@ is the same as the logical-and o... - 14:00 CoCoALib Feature #1030 (In Progress): IsInRadical: case of homog ideal
- I think that if the ideal @I@ is homog then @IsInRadical(f,I)@ is the same as the logical-and of @IsInRadical(f_d,I)@...
- 13:54 CoCoALib Feature #1030 (Closed): IsInRadical: case of homog ideal
- Currently @IsInRadical@ is defined in a CPKG5, but may soon be translated to CoCoALib.
The case of a homog poly in... - 11:34 CoCoA-5 Bug #1029: Readline: does not recognize interrupts
- A quick search found the following example use of the @readline@ alternative interface:
@http://www.mcld.co.uk/blog/... - 11:32 CoCoA-5 Bug #1029 (Closed): Readline: does not recognize interrupts
- Justin C Walker has pointed out that CoCoA-5's current use of @readline@ does not recognize interrupts (_e.g._ Ctrl-C...
13 Mar 2017
- 11:19 CoCoA-5 Bug #1028: Readline: cursor moves wrongly when at start of line with a prompt
- There is a (minor?) problem on my old MacBook: typing Ctrl-A when the cursor is at the right-end of the line does som...
- 10:59 CoCoA-5 Bug #1028 (Resolved): Readline: cursor moves wrongly when at start of line with a prompt
- I think I have just been lucky (or was it Giovanni's good design?).
I have just edited @ReadLineProvider::doReadNext... - 10:52 CoCoA-5 Bug #1028: Readline: cursor moves wrongly when at start of line with a prompt
- As Justin C Walker pointed out, the @readline@ command can accept a string arg which is printed as the prompt.
Cur... - 10:49 CoCoA-5 Bug #1028 (Closed): Readline: cursor moves wrongly when at start of line with a prompt
- Problem reported by Justin C Walker via email.
To exhibit problem: start CoCoA-5 (with readline) in a terminal; ty...
10 Mar 2017
- 19:18 CoCoALib Design #1019: CPP flags in installed library
- The tests are producing strange results: it seems that there is some mysterious problem with the threadsafe counter :...
- 19:17 CoCoALib Design #1019: CPP flags in installed library
- I now have a first impl of the "preprocessor definitions" header file.
One question which has just arisen is the f... - 13:06 CoCoA-5 Bug #946: Function "ideal" evaluates the argument twice
- Despite the *urgent* status I have postponed this to the next version. After all it is principally a matter of effic...
09 Mar 2017
- 18:01 CoCoA-5 Bug #946: Function "ideal" evaluates the argument twice
- I think this is far too difficult for this release.
I suggest moving it to next.
- 17:18 CoCoA-5 Bug #946: Function "ideal" evaluates the argument twice
- For an *urgent* issue, this is making very slow progress :-(
Perhaps someone (who??) should produce a test file wh... - 17:31 CoCoA-5 Slug #1025: Example of slow LEX GBasis computation
- This is really unrelated: it is an ideal with a surprisingly "large" DegRevLex RGBasis...
- 16:30 CoCoA-5 Slug #1025: Example of slow LEX GBasis computation
- More examples: these all have support a 3-subset of supp((x+y+z)^3+x) and coeffs +1 or -1...
- 14:14 CoCoA-5 Support #1027 (Closed): CoCoAManual: add a page with some emacs hints?
- Would it be a good idea to add a page with a few basic emacs commands to the CoCoA-5 online manual?
- 14:12 CoCoA-5 Bug #727: Emacs UI: send-file (C-c C-f) should check if buffer and file are synchronized
- There is an emacs function *@diff-buffer-with-file@*.
Another possibility is to run *@sum@* on the buffer contents...
08 Mar 2017
- 23:59 CoCoA-5 Slug #1025: Example of slow LEX GBasis computation
- Here are some more slow examples:...
- 18:56 CoCoA-5 Slug #1025: Example of slow LEX GBasis computation
- Here are some simple-looking ideals whose lex GBs cannot be computed (in reasonable time) by CoCoA-5.1.5:...
- 18:58 CoCoA-5 Design #1020 (In Progress): Rename minimalized(I) into IdealOfMinGens(I)?
- See also the discussion in issue #996 about which bool3 flags can be (ought to be) copied, and which cannot.
- 18:43 CoCoA-5 Feature #996 (In Progress): New function: IdealOfGBasis
- I don't recall being opposed to the idea of having @IdealOfGBasis@ (or something similar) in CoCoALib.
Now that yo... - 08:44 CoCoA-5 Feature #996: New function: IdealOfGBasis
- John Abbott wrote:
> As I pointed out in #1020, this fn should also copy across any 3-way flags (_e.g._ @IamRadical3... - 18:35 CoCoALib Design #1019: CPP flags in installed library
- After some consideration I think it is best to put all the CPP "flags" into a single header file, then any files whic...
- 17:03 CoCoA-5 Feature #737: Elementary transcendental functions (sin, cos, tan, log, exp)
- I've checked it in (not documented)....
- 15:26 CoCoALib Bug #1026: JanetBasis gives error indet index out of range
- There is a certain irony in finding this problem just 5 minutes after Mario left for good...
Is the implementation... - 15:24 CoCoALib Bug #1026 (New): JanetBasis gives error indet index out of range
- The following input gives an error:...
07 Mar 2017
- 21:17 CoCoA-5 Slug #1025: Example of slow LEX GBasis computation
- Send the output to a file! (over 40Mbytes)
Biggest coeffs are from the 3rd last polynomial; but several others are... - 21:15 CoCoA-5 Slug #1025 (In Progress): Example of slow LEX GBasis computation
- I am putting this example here just not to lose it:...
06 Mar 2017
- 21:52 CoCoA-5 Design #1020: Rename minimalized(I) into IdealOfMinGens(I)?
- John Abbott wrote:
> I like @IdealOfMinGens@.
> I do not much like @minimalize(I)@, so suggest making it obsolescen... - 17:40 CoCoA-5 Design #1020: Rename minimalized(I) into IdealOfMinGens(I)?
- I like @IdealOfMinGens@.
I do not much like @minimalize(I)@, so suggest making it obsolescent.
Presumably @IdealO... - 16:02 CoCoA-5 Design #1020 (Closed): Rename minimalized(I) into IdealOfMinGens(I)?
- I have added @IdealOfGBasis(I)@ to cocoa-5.
It is like saying @ideal(GBasis(I))@ and @SetGBasisAsGens@ (not availabl... - 19:37 CoCoALib Feature #1022: New "LF" function which is based on StdDeg
- Winfried Bruns wrote:
> Why not have a function for decomposing a polynomial into its homogeneous components? There ... - 19:14 CoCoALib Feature #1022: New "LF" function which is based on StdDeg
- Here is the function.
I'm still uncertain whether this should be part of cocoalib or not.
Anyway it may be copied... - 17:50 CoCoALib Feature #1022: New "LF" function which is based on StdDeg
- Why not have a function for decomposing a polynomial into its homogeneous components? There is one in NmzIntegrate.
- 16:50 CoCoALib Feature #1022: New "LF" function which is based on StdDeg
- CoCoALib currently offers @deg@ (or equiv. @StdDeg@) and @wdeg@. These functions throw an exception if the ring has ...
- 16:44 CoCoALib Feature #1022 (New): New "LF" function which is based on StdDeg
- [2017-03-06] Bruns requested by email to have a function like *@LF@* which works with respect to the standard grading...
- 19:17 CoCoA-5 Feature #996: New function: IdealOfGBasis
- John Abbott wrote:
> As I pointed out in #1020, this fn should also copy across any 3-way flags (_e.g._ @IamRadical3... - 17:41 CoCoA-5 Feature #996: New function: IdealOfGBasis
- As I pointed out in #1020, this fn should also copy across any 3-way flags (_e.g._ @IamRadical3@) from the original i...
- 17:45 CoCoA-5 Support #973: GroebnerFanIdeals: verbosity and output style
- Now using @IdealOfGBasis@, so that the generators of the ideals are the different GBasis....
- 17:08 CoCoA-5 Support #1024: CoCoA Manual: consistent spacing in VarName: TYPE
- To see an example of inconsistency, just type *@?:@* into CoCoA. This gives the page for infix operators. It looks ...
- 17:06 CoCoA-5 Support #1024 (Closed): CoCoA Manual: consistent spacing in VarName: TYPE
- Most entries in the CoCoAManual include a succinct description of the syntax like the following...
- 17:00 CoCoA-5 Support #521: Manual: automatically check all examples
- This seems a duplicate of #558, closed for CoCoA-5.1.0 Easter14.
Unless you mean to check also the output (then it... - 16:55 CoCoA-5 Support #521: Manual: automatically check all examples
- Done (again, long time ago...). It is called by...
- 16:50 CoCoA-5 Support #1023 (Closed): CoCoAManual for verbosity: how to find which levels? how to find which functions?
- @SetVerbosityLevel/VerbosityLevel@ allow to have verbosity.
Some functions now use them.
This should be reported in... - 16:44 CoCoA-5 Bug #170 (Closed): CoCoAManual HTML: page for "Try"
- in log:
Revision 1.19 2012/05/25 13:07:23 abbott
Cleaned entry for "Try".
Revision 1.14 2012/03/09 17:00:2... - 16:35 CoCoA-5 Bug #170 (Feedback): CoCoAManual HTML: page for "Try"
- As far as I can tell, this has already been done... no idea by whom, or when.
- 16:40 CoCoA-5 Feature #1021: CoCoA Manual: search should ignore multiple spaces
- I suggest transforming the search string as follows:
* replace all TABs (and any other whitespace chars) by plain sp... - 16:38 CoCoA-5 Feature #1021 (Closed): CoCoA Manual: search should ignore multiple spaces
- Some CoCoA online manual pages have titles containing spaces.
Searching for such a page with a search string contain... - 13:30 CoCoALib Design #1019: CPP flags in installed library
- *NOTE* I have just learned that if you press return while typing in the comment "subject" line, redmine then "finishe...
- 11:45 CoCoALib Design #1019: CPP flags in installed library
- Here is a list of the CoCoA CPP flags:
* *@CoCoA_ULONG2LONG@*
* *@CoCoA_THREADSAFE_HACK@*
* *@CoCoA_DEBUG@*
* *@C...
05 Mar 2017
- 21:20 CoCoALib Design #1019: CPP flags in installed library
- To me it seems that approach *(A)* is less convenient and more risky/annoying (since any problem is reported only aft...
- 21:13 CoCoALib Design #1019 (In Progress): CPP flags in installed library
- Recently Bruns reported a compilation problem (see #1015) which turned out to be a problem of missing CPP flags. A s...
- 21:01 CoCoALib Design #1019 (Closed): CPP flags in installed library
- What is the best way to ensure that any important CPP flags are correctly set when using CoCoALib?
One approach is...
03 Mar 2017
- 15:12 CoCoALib Bug #1015 (Feedback): Bruns SEGV: SparsePolyIter/DMPI problem
- I have now added a similar check for ULONG2LONG. It's all a nasty hack, but seems to work.
Checked-in too. Now I...
02 Mar 2017
- 16:15 CoCoA-5 Feature #744 (Closed): Handle interrupts more helpfully
- 16:12 CoCoA-5 Bug #757 (Closed): readline: fix script for finding libreadline
- 15:51 CoCoALib Bug #1015: Bruns SEGV: SparsePolyIter/DMPI problem
- JAA should also check the value of ULONG2LONG... perhaps need a template approach?
- 15:23 CoCoA-5 Support #973: GroebnerFanIdeals: verbosity and output style
- now prints
* with verbosity >=10 (each call of recursive, CallOnRecursive)
. with verbosity >=20 (each call of Get... - 15:22 CoCoALib Feature #202 (In Progress): MatrixView/function for viewing a single row or column (RowMat, ColMat)
- Implemented (using @submat@).
Still have to write tests and doc.
- 14:50 CoCoALib Design #934: MachineInt: change semantics?
- After personal discussion in Kassel: I agree.
- 14:19 CoCoA-5 Design #1018 (Closed): Interpreter: limit range for ".." operator
- Currently there is no check for the arguments of @..@
Limit the input!
for example upper-lower < ???
- 13:51 CoCoALib Feature #958: New function: multiplicity and dim
- Still to do: non-homogenous input
- 13:34 CoCoALib Feature #958: New function: multiplicity and dim
- John Abbott wrote:
> What exactly does multiplicity do?
>
> I made the mistake of trying to compute @multiplicity... - 13:46 CoCoALib Feature #931: GBasis verbose mode
- Set 100 for first GBasis printouts
- 13:39 CoCoALib Feature #931: GBasis verbose mode
- John Abbott wrote:
> In the meantime, Anna plans to add the appropriate verbosity lines to @myDoGBasisElimFirst@.
... - 11:08 CoCoALib Feature #931: GBasis verbose mode
- Answer to previous question is that internally Anna uses a hack: she calls @myDoGBasisElimFirst@ rather than the gene...
- 13:46 CoCoALib Feature #961: New function: ReducedGBasis
- John Abbott wrote:
> I prefer to have two distinct functions *@GBasis@* and *@ReducedGBasis@* because:
done.
Sho... - 11:24 CoCoALib Feature #961: New function: ReducedGBasis
- I prefer to have two distinct functions *@GBasis@* and *@ReducedGBasis@* because:
* the name *@ReducedGBasis@* gives... - 13:44 CoCoALib Feature #902 (Closed): New function: FrobeniusMat
- 13:44 CoCoALib Feature #962: General verbose mode?
- Changed interface (after personal discussion in Kassel):...
- 13:31 CoCoALib Feature #357: Constructor for vectors? CoCoAVector
- It seems to me that this will be covered by the "braced constructor" for C++ vectors that appeared in C++11.
What ... - 13:31 CoCoALib Feature #957 (Feedback): New function: HasGBasis
- 13:28 CoCoA-5 Feature #1017 (Rejected): New function: SetGBasisAsGens [--> NO: use IdealOfGBasis]
- Write a new function to modify an ideal so that removes the current set of generators and substitutes it with the GBa...
- 11:16 CoCoALib Feature #1016 (Closed): ReducedGBasis for RingWeyl (and other non-commutative rings)
- Implement @ReducedGBasis@ for @RingWeyl@ and other potential future non-commutative rings.
01 Mar 2017
- 18:04 CoCoALib Bug #1015: Bruns SEGV: SparsePolyIter/DMPI problem
- I have now added an automatic check for @CoCoA_THREADSAFE_HACK@.
If you compile the library with one setting and try... - 14:43 CoCoALib Bug #1015 (Resolved): Bruns SEGV: SparsePolyIter/DMPI problem
- The problem goes away if the flag *@-DCoCoA_THREADSAFE_HACK@* is added to the compilation line.
At the moment I do... - 14:16 CoCoALib Bug #1015: Bruns SEGV: SparsePolyIter/DMPI problem
- The problem continues to arise with the following simplified compilation command:...
- 14:06 CoCoALib Bug #1015: Bruns SEGV: SparsePolyIter/DMPI problem
- Here we have a minimal failing example:...
- 13:40 CoCoALib Bug #1015 (In Progress): Bruns SEGV: SparsePolyIter/DMPI problem
- The problem arises under the following conditions:
* CoCoALib is configured with @--threadsafe-hack@ and @--no-boost... - 13:37 CoCoALib Bug #1015 (Closed): Bruns SEGV: SparsePolyIter/DMPI problem
- Winfried Bruns reported a SEGV problem by email.
The following code will exhibit it: @F@ is a poly with a single t... - 14:15 CoCoA-5 Feature #927 (Closed): Add "exit" in addition to "ciao"
- 14:11 CoCoA-5 Feature #954 (Closed): New function: StdBasis (standard basis)
- 14:10 CoCoA-5 Feature #959 (Closed): New function: SymmetricPolys
- 13:35 CoCoA-5 Bug #995 (Closed): LaTeX(x^10) should use curly brackets
- 13:34 CoCoA-5 Bug #880 (Closed): subst should check that indet is in same ring as 1st arg, but does not.
- 13:33 CoCoA-5 Bug #870 (Feedback): GBasis of product of ideals is wrong (Vadim Tropashko) --> I.myReset()
- 13:31 CoCoA-5 Bug #852 (Closed): fix OnlineManual.C so that version number may be removed from CoCoAHelp.xml
25 Feb 2017
- 11:11 CoCoALib Support #1013: GlobalManager: name of object in examples (and tests)
- > Would *@InitializeCoCoA@* be more comprehensible?
Perfect!
24 Feb 2017
- 17:54 CoCoALib Bug #1014 (In Progress): RowMat, ColMat with arg an empty list/vector
- Another (mild?) incompatibility is that in CoCoA-5 @RowMat@ and @ColMat@ accept as input lists of INT and/or RAT.
In... - 17:49 CoCoALib Bug #1014: RowMat, ColMat with arg an empty list/vector
- At the moment JAA thinks that giving an error is probably better.
Is there a situation where one might reasonably ... - 17:45 CoCoALib Bug #1014: RowMat, ColMat with arg an empty list/vector
- In CoCoA-5 one can call @RowMat([])@ and @ColMat([])@ to produce a matrix 1x0 or 0x1.
In CoCoALib a similar call pro... - 17:39 CoCoALib Bug #1014 (In Progress): RowMat, ColMat with arg an empty list/vector
- What should @RowMat@ and @ColMat@ do if given am empty list/vector as argument?
- 17:51 CoCoALib Feature #202: MatrixView/function for viewing a single row or column (RowMat, ColMat)
- What should these functions do if the matrix is 0-by-C or R-by-0?
Return a 0-by-1 or 1-by-0 matrix? - 17:42 CoCoALib Feature #202: MatrixView/function for viewing a single row or column (RowMat, ColMat)
- Another possibility: uglier, but possibly clearer?
* *@RowMatView@*
* *@ColMatView@*
The intention is that the r... - 14:16 CoCoALib Support #1013: GlobalManager: name of object in examples (and tests)
- In just a couple of days I shall have to present CoCoALib and its examples.
Indeed, I shall probably concentrate on ... - 14:13 CoCoALib Support #1013 (New): GlobalManager: name of object in examples (and tests)
- At the moment all CoCoALib examples use the name *@CoCoAFoundations@* for the @GlobalManager@ object.
Is there a b...
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