CoCoA

02 Mar 2015

11:23 CoCoALib Feature #667 (New): factor: multivariate + finite characteristic

(if I remember well)
The problem about factorizing a multivariate polynomial in finite characteristic was just the s... Anna Maria Bigatti

27 Feb 2015

13:36 CoCoALib Bug #666 (In Progress): RatReconstructByLattice fails in some simple cases

I now think that the problem may really be imprecise documentation.
John Abbott

19 Feb 2015

17:56 CoCoALib Bug #666: RatReconstructByLattice fails in some simple cases

It seems that *both* @RatReconstructByContFrac@ and @RatReconstructByLattice@ *fail* on (1,N) for N < 1145. Then the... John Abbott

15:04 CoCoALib Bug #666: RatReconstructByLattice fails in some simple cases

I ran the following to compare when ContFrac and Lattice methods are better... John Abbott

15:01 CoCoALib Bug #666 (Closed): RatReconstructByLattice fails in some simple cases

@RatReconstructByLattice(1,1145)@ returns failure -- why?? John Abbott

15:14 CoCoA-5 Support #290: Which functions are defined in CoCoALibSupplement?

Part of the definition of IsFactorClosed in BuiltInFunctions should be moved into CoCoALibSupplement (I will do it soon) Anna Maria Bigatti

13 Feb 2015

20:59 CoCoALib Feature #24: object files collected in one directory

Right now I do not recall why we think it is a good idea to have all object files in a single directory.
Pro:
* e... John Abbott

20:37 CoCoALib Feature #24: object files collected in one directory

Here is an example I found on the internet; it uses GNU make's VPATH facility:... John Abbott

20:46 CoCoALib Feature #664: Impl small non-prime finite fields (using logs)

When char=2 we can readily use (binary) integers to represent field elements.
The idea is to find a generator @theta... John Abbott

20:41 CoCoALib Feature #665: Integrate Janet/Pommaret basis code

Mario will try to put all his source code in his own namespace (perhaps called @involutive@), and will put all his fi... John Abbott

12 Feb 2015

10:33 CoCoALib Feature #651: Optimized algorithms for implicitization (slicing algorithm, elim, subalgebra..)

I changed all ring names into Kt and Kx in TmpImplicit.C
Anna Maria Bigatti

11 Feb 2015

17:42 CoCoALib Feature #665 (In Progress): Integrate Janet/Pommaret basis code

Integrating Janet/Pommaret basis into CoCoALib and CoCoA-5
What Mario will do:
* think about good names for JBMil... John Abbott

17:39 CoCoALib Feature #664 (Resolved): Impl small non-prime finite fields (using logs)

Impl small non-prime finite fields (?using log/exp tables?)
Werner+Mario would like these ASAP; especially with ch... John Abbott

04 Feb 2015

13:19 CoCoA-5 Bug #663 (New): Emacs UI: C-c C-\ copies line cursor is on

The emacs key sequence @C-c C-\@ quits a running CoCoA-5 (same as Signals->QUIT).
I noticed that if the cursor is no... John Abbott