It's likely he used Sage's symbolics (and an old version at that) instead of poly rings. I replied there.
On Sunday, July 9, 2017 at 5:39:29 PM UTC+2, William wrote: > > New blog post from Bill Hart. It includes a section claiming Sage’s > multivariate polynomial arithmetic speed is much worse than expected... > > ---------- Forwarded message --------- > From: Bill Hart <goodwi...@googlemail.com <javascript:>> > Date: Sun, Jul 9, 2017 at 8:34 AM > Subject: [ODK participants] Blog post on fast multivariate arithmetic > To: Opendreamkit participants <partic...@opendreamkit.org <javascript:>> > > > Dear all, > > I've written a blog post on the fast multivariate arithmetic we've been > doing for ODK [1]. This is a deliverable which is due at the end of the > four years, so we've got a long way to go, but it is progressing nicely in > the interim. > > The next stage is to parallelise this, and we've hired Daniel Schultz to > work on our ODK deliverable which will do precisely this. He's an > experienced developer from the US who was already writing his own CAS (in > assembly language, believe it or not!) > > Bill. > > [1] > https://wbhart.blogspot.de/2017/07/update-on-fast-multivariate-polynomial.html > -- > -- William Stein > -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
