[sage-devel] Re: PolyBoRi 0.6 vs. Sage degrevlex

2009-08-04 Thread Michael Brickenstein
Hi! Maintaining these lookup tables and other tricks is a lot of work, which could be invested elsewhere, e.g. your PHD. Even for me, the difference between these orderings is pure subtility from a users perspective. However the ascending variant is far more efficient with ZDDs. Michael On 4 Au

[sage-devel] Re: PolyBoRi 0.6 vs. Sage degrevlex

2009-08-04 Thread Nick Alexander
On 4-Aug-09, at 7:44 AM, Michael Brickenstein wrote: > Maintaining these lookup tables and other tricks is a lot of work, > which could be invested elsewhere, e.g. your PHD. > Even for me, the difference between these orderings is pure subtility > from a users perspective. I disagree. When yo

[sage-devel] Re: PolyBoRi 0.6 vs. Sage degrevlex

2009-08-04 Thread Martin Albrecht
On Tuesday 04 August 2009, Nick Alexander wrote: > On 4-Aug-09, at 7:44 AM, Michael Brickenstein wrote: > > Maintaining these lookup tables and other tricks is a lot of work, > > which could be invested elsewhere, e.g. your PHD. > > Even for me, the difference between these orderings is pure subti

[sage-devel] Re: PolyBoRi 0.6 vs. Sage degrevlex

2009-08-04 Thread Michael Brickenstein
Well, if you want an degree ordering, which is descending for the variables, we have degree lexicographical ordering in PolyBoRi fully supported. Michael --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from