CoCoA Project

06 Aug 2021

08:44 CoCoALib Feature #1598 (Resolved): RingHom: implement phi(X) as apply(phi, X) also for X vector and matrix

Anna Maria Bigatti

08:44 CoCoALib Feature #1598: RingHom: implement phi(X) as apply(phi, X) also for X vector and matrix

Implemented for vector also in CoCoA-5, where it'll be most useful.
It was much more painful than expected because o... Anna Maria Bigatti

03 Aug 2021

10:01 CoCoALib Bug #1605: binomial: domain of defn?

John Abbott wrote:
> I have changed the code to use the fully general defn... not really sure why it was not already... Anna Maria Bigatti

09:45 CoCoALib Feature #1598: RingHom: implement phi(X) as apply(phi, X) also for X vector and matrix

John Abbott wrote:
> I have a prototype for list/vector; not checked, not checked-in.
> Should I check it in? Woul... Anna Maria Bigatti

30 Jul 2021

17:32 CoCoA-5 Bug #946: Function "ideal" evaluates the argument twice

Fixed PolyRingHom and PolyAlgebraHom.
Added @evalRVAsListOfRingElem@ with ring
CVS'd Anna Maria Bigatti

11:13 CoCoA-5 Bug #946: Function "ideal" evaluates the argument twice

Anna Maria Bigatti wrote:
> (I'll see ModuleElem)
Worked together: ModuleElem is fine. The problem is in submodu... Anna Maria Bigatti

17:30 CoCoALib Feature #1598: RingHom: implement phi(X) as apply(phi, X) also for X vector and matrix

Added phi(matrix).
Prototype. Not entirely certain with it.
CVS'd Anna Maria Bigatti

19 Jul 2021

14:13 CoCoA-5 Bug #946: Function "ideal" evaluates the argument twice

(I'll see ModuleElem) Anna Maria Bigatti