Activity
From 04 Mar 2017 to 02 Apr 2017
29 Mar 2017
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18:25 CoCoALib Feature #931: GBasis verbose mode
- Current setting seems satisfactory.
Documented in cocoa-5.... not in CoCoALib.
Can we avoid this duplication of doc... -
- In conclusion: all done for the commutative case.
To do for non-commutative case (new issue).
Closing this one. -
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18:09 CoCoALib Bug #971 (Closed): CheckForInterrupt does not work in the expected way
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- definitively a bug: "n" instead of "Indices[n]" in the preprocessing.
Obviously a very rare case. -
- Solved by issue #1036 (which is a duplicate of this issue, but I created it because a search for "LogStream" found no...
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- Already implemented: very simple. Written doc.
The only thing missing is an example.
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- On which output stream should logging messages from CoCoALib be printed?
* @cout@ mixes logging messages with stan...
28 Mar 2017
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- Anna Maria Bigatti wrote:
> Add also the syntax @LinKer(L)@ where L is a list of linear polynomials.
Modified cou... -
- Add also the syntax @LinKer(L)@ where L is a list of linear polynomials.
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- Should we postpone this issue to the next version?
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- Postpone to next version?
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- QuotientBasis returns a list of power-products ordered by increasing lex (independently of the ordering in the ring)....
20 Mar 2017
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- I like the idea of @<key>verbose</key>@. KISS!
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- I noticed in the new CoCoA-5 manual entry for ApproxPointsNBM there are some incomplete phrases about what various ve...
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17 Mar 2017
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- This was done some while ago. I've been using the revised version of @cocoa5.el@ for at least a month without any pr...
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- I made a change to the regexp a while ago. All the examples in the comments above seem to work in a reasonable way.
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- > In some ways the "eat up" version appeals to me more; though it might discourage casual use... (would that matter?)...
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- I'm against this idea, because I think it might be badly misused.
I see you want to apply it to IsInRadical for a ... -
- If we do choose to introduce such a function, what should its name be?
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- Introduce new function to split a poly into its homog parts.
What should the result be?
* @vector<RingElem>@ whe... -
- I'm still searching for a "ready-to-eat" solution on the internet, and am also reading the readline documentation.
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- The infix operator *@IsIn@* accepts many different combinations of arg types.
However, for some non-sensical combina... -
- Here are some examples which suggest that it may be better to decompose a poly into its homog parts when testing memb...
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- Here are some cases where behaviour is not ideal:...
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- The current impls of @IsInRadical@ and @MinPowerInRadical@ are fragile: they give errors when they should/need not.
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- The manual page seems to be very wrong! It should probably be completely rewritten *after* we have decided exactly w...
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- We must establish the exact definition of *@ScalarProduct@* and rewrite the manual page accordingly.
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- 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
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- John Abbott wrote:
> I think that if the ideal @I@ is homog then @IsInRadical(f,I)@ is the same as the logical-and o... -
- 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)@...
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- Currently @IsInRadical@ is defined in a CPKG5, but may soon be translated to CoCoALib.
The case of a homog poly in... -
- A quick search found the following example use of the @readline@ alternative interface:
@http://www.mcld.co.uk/blog/... -
- 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
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- 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...
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- I think I have just been lucky (or was it Giovanni's good design?).
I have just edited @ReadLineProvider::doReadNext... -
- As Justin C Walker pointed out, the @readline@ command can accept a string arg which is printed as the prompt.
Cur... -
- Problem reported by Justin C Walker via email.
To exhibit problem: start CoCoA-5 (with readline) in a terminal; ty...
10 Mar 2017
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- The tests are producing strange results: it seems that there is some mysterious problem with the threadsafe counter :...
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- I now have a first impl of the "preprocessor definitions" header file.
One question which has just arisen is the f... -
- Despite the *urgent* status I have postponed this to the next version. After all it is principally a matter of effic...
09 Mar 2017
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- I think this is far too difficult for this release.
I suggest moving it to next.
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- For an *urgent* issue, this is making very slow progress :-(
Perhaps someone (who??) should produce a test file wh... -
- This is really unrelated: it is an ideal with a surprisingly "large" DegRevLex RGBasis...
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- More examples: these all have support a 3-subset of supp((x+y+z)^3+x) and coeffs +1 or -1...
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- Would it be a good idea to add a page with a few basic emacs commands to the CoCoA-5 online manual?
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- There is an emacs function *@diff-buffer-with-file@*.
Another possibility is to run *@sum@* on the buffer contents...
08 Mar 2017
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- Here are some more slow examples:...
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- Here are some simple-looking ideals whose lex GBs cannot be computed (in reasonable time) by CoCoA-5.1.5:...
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- See also the discussion in issue #996 about which bool3 flags can be (ought to be) copied, and which cannot.
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- I don't recall being opposed to the idea of having @IdealOfGBasis@ (or something similar) in CoCoALib.
Now that yo... -
- John Abbott wrote:
> As I pointed out in #1020, this fn should also copy across any 3-way flags (_e.g._ @IamRadical3... -
- After some consideration I think it is best to put all the CPP "flags" into a single header file, then any files whic...
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- I've checked it in (not documented)....
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- There is a certain irony in finding this problem just 5 minutes after Mario left for good...
Is the implementation... -
- The following input gives an error:...
07 Mar 2017
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- Send the output to a file! (over 40Mbytes)
Biggest coeffs are from the 3rd last polynomial; but several others are... -
- I am putting this example here just not to lose it:...
06 Mar 2017
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- John Abbott wrote:
> I like @IdealOfMinGens@.
> I do not much like @minimalize(I)@, so suggest making it obsolescen... -
- I like @IdealOfMinGens@.
I do not much like @minimalize(I)@, so suggest making it obsolescent.
Presumably @IdealO... -
- I have added @IdealOfGBasis(I)@ to cocoa-5.
It is like saying @ideal(GBasis(I))@ and @SetGBasisAsGens@ (not availabl... -
- Winfried Bruns wrote:
> Why not have a function for decomposing a polynomial into its homogeneous components? There ... -
- 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.
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- CoCoALib currently offers @deg@ (or equiv. @StdDeg@) and @wdeg@. These functions throw an exception if the ring has ...
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- [2017-03-06] Bruns requested by email to have a function like *@LF@* which works with respect to the standard grading...
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- John Abbott wrote:
> As I pointed out in #1020, this fn should also copy across any 3-way flags (_e.g._ @IamRadical3... -
- As I pointed out in #1020, this fn should also copy across any 3-way flags (_e.g._ @IamRadical3@) from the original i...
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- Now using @IdealOfGBasis@, so that the generators of the ideals are the different GBasis....
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- To see an example of inconsistency, just type *@?:@* into CoCoA. This gives the page for infix operators. It looks ...
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- Most entries in the CoCoAManual include a succinct description of the syntax like the following...
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- This seems a duplicate of #558, closed for CoCoA-5.1.0 Easter14.
Unless you mean to check also the output (then it... -
- Done (again, long time ago...). It is called by...
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- @SetVerbosityLevel/VerbosityLevel@ allow to have verbosity.
Some functions now use them.
This should be reported in... -
- 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... -
- As far as I can tell, this has already been done... no idea by whom, or when.
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- I suggest transforming the search string as follows:
* replace all TABs (and any other whitespace chars) by plain sp... -
- Some CoCoA online manual pages have titles containing spaces.
Searching for such a page with a search string contain... -
- *NOTE* I have just learned that if you press return while typing in the comment "subject" line, redmine then "finishe...
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- Here is a list of the CoCoA CPP flags:
* *@CoCoA_ULONG2LONG@*
* *@CoCoA_THREADSAFE_HACK@*
* *@CoCoA_DEBUG@*
* *@C...
05 Mar 2017
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- To me it seems that approach *(A)* is less convenient and more risky/annoying (since any problem is reported only aft...
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- Recently Bruns reported a compilation problem (see #1015) which turned out to be a problem of missing CPP flags. A s...
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- What is the best way to ensure that any important CPP flags are correctly set when using CoCoALib?
One approach is...
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