CoCoA Project

24 Apr 2020

20:43 CoCoALib Bug #1449 (Resolved): Bivariate factor bug: sometimes a factor is reducible

I has disabled the dodgy looking short-cut, and now several tests (incl. the original example) have worked just fine.... John Abbott

16:36 CoCoALib Bug #1449: Bivariate factor bug: sometimes a factor is reducible

Here is an even simpler example:... John Abbott

15:53 CoCoALib Bug #1449: Bivariate factor bug: sometimes a factor is reducible

I have found a bug... not yet sure how to fix it. :-/
The crucial line is around @DUPZfactor_combine.c:315@; the va... John Abbott

22 Apr 2020

21:57 CoCoALib Bug #1449: Bivariate factor bug: sometimes a factor is reducible

The problem is in the *univariate* factorizer (ouch!)... John Abbott

21 Apr 2020

10:18 CoCoALib Bug #1449: Bivariate factor bug: sometimes a factor is reducible

Here is a simpler example:... John Abbott

20 Apr 2020

15:32 CoCoALib Bug #1449 (In Progress): Bivariate factor bug: sometimes a factor is reducible

Here is a simpler failing example:... John Abbott

13:56 CoCoALib Bug #1449: Bivariate factor bug: sometimes a factor is reducible

I have simplified slightly the problem (from what Nalbach reported by email).
About 7% of calls gave a wrong resul... John Abbott

13:54 CoCoALib Bug #1449 (Closed): Bivariate factor bug: sometimes a factor is reducible

The following code prints out some faulty (_i.e._ not irred) factorizations:... John Abbott

19 Apr 2020

19:26 CoCoALib Feature #1299 (Feedback): New fn ConstantTerm?

I have now checked in my code... since I was checking CVS anyway.
Also added doc to @CoCoAHelp.xml@.
John Abbott

17 Apr 2020

16:11 CoCoA-5 Bug #1448 (Feedback): EmacsUI: sending line with "7" calls SourceRegion (!?!?!)

I have checked in (*@cocoa5.el@*)
How can we make a test suite for the emacs UI?
Please test, and let me know i... John Abbott

16:07 CoCoA-5 Bug #1448: EmacsUI: sending line with "7" calls SourceRegion (!?!?!)

I think I have a reasonable solution; it may not behave exactly as before. It's tricky getting these regexps to do e... John Abbott

15:45 CoCoA-5 Bug #1448: EmacsUI: sending line with "7" calls SourceRegion (!?!?!)

I have modified the regexp in my local copy, and it works now.
*BUT* the file contains some weird chars now :-/
... John Abbott

15:22 CoCoA-5 Bug #1448: EmacsUI: sending line with "7" calls SourceRegion (!?!?!)

I wonder if the problem is in the regexp on line 1423.... damn, I wrote that :-(
John Abbott

15:19 CoCoA-5 Bug #1448: EmacsUI: sending line with "7" calls SourceRegion (!?!?!)

It is important to read carefully the description of the bug...
I confirm the bug for me (Ubuntu 18.04, emacs 25.2... John Abbott

26 Mar 2020

11:40 CoCoA-5 Design #990: CoCoA-5 distribution: tidying

It's a bit late to make a change for the current version, but we could do it for the next release...
I suggest postp... John Abbott

11:38 CoCoA-5 Design #990: CoCoA-5 distribution: tidying

Here is a quick summary of what I think the installation "script" for CoCoALib does:
* create new dir with name like... John Abbott

10:28 CoCoALib Feature #1299: New fn ConstantTerm?

I have a prototype impl, much like the impl for *@HomogCompt@*.
It is disappointingly slow for larger polynomials:... John Abbott