On Wed, Dec 2, 2009 at 12:57 PM, William Stein <wst...@gmail.com> wrote: > WTF? Regular expressions?!?!
The following messages are probably relevant for the fast conversion between singular polynomial rings: On Sat, Oct 18, 2008 at 2:55 AM, Michael Brickenstein <brickenst...@mfo.de> wrote: > In Singular the same thing is essentially done from the interpreter > level by the more general command fetch. > I had a look, what it does internally and came to the conclusion, > that it just calls > poly prCopyR(poly p, ring src_r, ring dest_r) > in your simple case (same coefficient domains). > So first, you should setup a new ring and > then map the polynomial via > prCopyR > > Michael On Mon, Oct 20, 2008 at 8:43 PM, <han...@mathematik.uni-kl.de> wrote: > if the monomial ordering is really the same, > you may also use > poly prCopyR_NoSort(poly p, ring src_r, ring dest_r) > which avoids the sorting the polynomial after mapping each monomial. > There are also corresponding routines for ideals > (ideal idrCopyR(ideal id, ring src_r, ring dest_r), > ideal idrCopyR_NoSort(ideal id, ring src_r, ring dest_r) > ) > --Mike -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
