Hi Kurt > The REDUCE ncpoly is quite slow
Perhaps, but it is useful for small expressions and is better than nothing. > Singular's nfactor.lib is quite sophisticated I just came across Singular. Looks pretty good. > This might be a good opportunity for you to write a package ;) I would love to. But right now I am very busy with my PhD! On Mon, May 28, 2018 at 4:14 PM, Kurt Pagani <[email protected]> wrote: > Hi Marduk > > You certainly know that this is not entirely trivial. The REDUCE ncpoly is > quite > slow (at least it was some years go). IMO Singular's nfactor.lib is quite > sophisticated and could also be implemented in fricas (all structures are > already availabe, Ring, FreeModule(R,S) is nc ... > This might be a good opportunity for you to write a package ;) > > Cohn (a must - showed that assoc free algebra is a unique fac. domain) > http://sms.math.nus.edu.sg/smsmedley/Vol-19-2/Euclid's% > 20algorithm-%20since%20Euclid(PM%20Cohn).pdf > > UFD > https://en.wikipedia.org/wiki/Unique_factorization_domain > > SINGULAR/NFACTOR.LIB > https://cs.uwaterloo.ca/~aheinle/posters/cheriton_poster.pdf > https://www.singular.uni-kl.de/Manual/latest/sing_704.htm#SEC756 > > > On 28.05.2018 08:19, Marduk wrote: > > Thank you Bill! I already contacted the author. > > > > I also found out that REDUCE includes this functionality: > > > > http://www.reduce-algebra.com/reduce38-docs/ncpoly.pdf > > > > > > I think it should also be included in Axiom/FriCAS. > > > > Marduk > > > > -- > > You received this message because you are subscribed to the Google Groups > > "FriCAS - computer algebra system" group. > > To unsubscribe from this group and stop receiving emails from it, send > an email > > to [email protected] > > <mailto:[email protected]>. > > To post to this group, send email to [email protected] > > <mailto:[email protected]>. > > Visit this group at https://groups.google.com/group/fricas-devel. > > For more options, visit https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to a topic in the > Google Groups "FriCAS - computer algebra system" group. > To unsubscribe from this topic, visit https://groups.google.com/d/ > topic/fricas-devel/6pz2ARTNlGw/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/fricas-devel. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "FriCAS - computer algebra system" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/fricas-devel. For more options, visit https://groups.google.com/d/optout.
