On Mon, Mar 8, 2021 at 9:25 AM Alex Braat <alexbr...@gmail.com> wrote: > > Hello, > > I have encountered some strange behavior when I evaluate multivariate > polynomials over the integers modulo n. For instance, > > In: > p = 3 > S = Integers(p^2) > R.<x,y> = PolynomialRing(S) > f = x^2 * y^2 > print(f([S(p),S(1)]), f([S(1), S(p)])) > > Out: > 1 0 > > while both evaluations should ofcourse be equal to 0. This does not depend on > the prime p, and is consistent in both of these versions of SageMath:
looks like a bug (also in the 9.3.beta7) sage: f(S(3),S(1)) 1 > > 'SageMath version 8.7, Release Date: 2019-03-23' > 'SageMath version 9.2, Release Date: 2020-10-24' > > Am I doing something wrong or is this a bug? > > -- > You received this message because you are subscribed to the Google Groups > "sage-support" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to sage-support+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sage-support/e3b67e84-1d8b-46e4-b0dd-5558f6d4929bn%40googlegroups.com. -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-support/CAAWYfq3W2Y47dMdY_zJSDcL_2_5aw%3DTnqqqnOrt9WGCNcwKcDQ%40mail.gmail.com.
