I remember the problem now. resultant(R(2), R(2)) = 1
since it is an empty product. But there is no Z-linear combination of R(2) and R(2) which gives 1. So the input has to be disallowed. It's only a problem for constant polynomial inputs that are not coprime (as elements of Z) though. For higher degrees there are powers of the contents that the polynomials can be multiplied by that will work. On Tuesday, 27 January 2015 16:28:46 UTC+1, Bill Hart wrote: > > For the time being I'm just going to modify Nemo. It would probably be > inefficient to do anything else. > > On Tuesday, 27 January 2015 16:22:39 UTC+1, vdelecroix wrote: >> >> Hi Bill, >> >> 2015-01-27 16:16 UTC+01:00, Bill Hart <[email protected]>: >> > This turns out not to be a bug. >> > >> > The documentation requires that the inputs be primitive, which in the >> > example given, they aren't. The function does work if passed the >> > polynomials R(1) and R(1). >> >> I see. Thanks I will update the trac ticket and the way we use the >> function. >> >> > However, this bug also exists in Nemo. So thanks for pointing it out. I >> can >> > >> > fix that, at least. >> >> Do you mean that you will change the specification of the FLINT >> function or that you will only modify Nemo ? >> >> Vincent >> > -- 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
