CoCoA » CoCoA-5

25 Oct 2017

16:14 Support #1111: CoCoAManual: searching for ?? mat and for ?? matrix give different results

I was hoping to have an interesting issue with number 1111; instead it is just this... sigh!
My guess is that a Co... John Abbott

16:12 Support #1111 (Closed): CoCoAManual: searching for ?? mat and for ?? matrix give different results

In CoCoA-5... John Abbott

19 Oct 2017

17:12 Slug #1109 (In Progress): Emacs UI can be slow in M$ Windows

I searched on internet and found some descriptions of similar problems. The suggestion is to add the following line ... John Abbott

17:08 Slug #1109 (Closed): Emacs UI can be slow in M$ Windows

At the school in Cameroon I saw that some Microsoft Windows computers were terribly slow (_e.g._ 30s delay after each... John Abbott

16 Oct 2017

16:54 Feature #1107: CoCoA Online: install (using InteractiveShell)

First hard work: install properly vagrant.
(with the help of Alessandro Cartatone) Anna Maria Bigatti

16:49 Feature #1107 (New): CoCoA Online: install (using InteractiveShell)

install CoCoA Online (using InteractiveShell)
Anna Maria Bigatti

09 Oct 2017

15:23 Support #977: "universal denominator" (related with GroebnerFanIdeals)

John Abbott wrote:
> JAA prefers INT to RINGELEM (at least for the moment).
OK, I'll change it back.
> If the co... Anna Maria Bigatti

15:19 Support #977: "universal denominator" (related with GroebnerFanIdeals)

JAA prefers INT to RINGELEM (at least for the moment).
If the coeff ring is not QQ but is FracField then I'm not s... John Abbott

12:53 Support #977: "universal denominator" (related with GroebnerFanIdeals)

Should @UniversalDenominator@ return @INT@ or @RingElem@?
We should also choose its name: @UniversalDen@?
Current... Anna Maria Bigatti

05 Oct 2017

10:21 Slug #907: ApproxSolve very slow on this example

This is another example where @ApproxSolve@ is too slow (in CoCoA-5.2.2).
The example came from "playing with" palin... John Abbott

02 Oct 2017

13:30 Feature #731 (In Progress): Primary Decomposition in CoCoA-5

PD for 0-dim ideals has been implemented (see issue #845)
John Abbott

27 Sep 2017

17:22 Slug #948: radical is slow (compared to singular) on these examples

Singular appears not to compute a GBasis for the radical.
For instance, in the first example in comment 11, Singul... John Abbott