On Tue, Jun 16, 2020 at 8:52 AM Taylor Huang <asd00012334.c...@gmail.com> wrote: > > Hi, thanks for your reply. > I also note found that the membership check is broken as well. > > from sage.modules.free_module_integer import IntegerLattice > coef = Matrix([-44429982080874270968379672793605458, > 98931650854481334735580708522902113]) > bMat = Matrix([[20957228, -4966110],[ 9411844, 19625639]]) > L = IntegerLattice(bMat) > print(coef*bMat in L)
here is a bit of sanity check, also showing how to take a different codepath in Sage for the membership check from sage.modules.free_module_integer import IntegerLattice coef = Matrix([-44429982080874270968379672793605458, 98931650854481334735580708522902113]) bMat = Matrix([[20957228, -4966110],[ 9411844, 19625639]]) L = IntegerLattice(bMat) coef*bMat in L # prints false bMatGAP=libgap(bMat) v=libgap(coef*bMat)[0] sol=libgap.SolutionIntMat(bMatGAP,v); sol # prints # [ -423434671769860, -18882583298608161305225815339 ] vector(sol.sage())*bMat==vector(coef*bMat) # sanity check - prints True I've updated the ticket, and made it blocker. > > dim...@gmail.com 在 2020年6月15日 星期一下午4:05:30 [UTC+8] 的信中寫道： >> >> Yes, it looks like a bug. >> I've opened https://trac.sagemath.org/ticket/29866 >> (a slightly simplified example, without a vector with non-integer >> coefficients, is there) >> >> On Mon, Jun 15, 2020 at 8:28 AM Taylor Huang <asd00012...@gmail.com> wrote: >> > >> > anyone here? >> > >> > -- >> > 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+...@googlegroups.com. >> > To view this discussion on the web visit >> > https://groups.google.com/d/msgid/sage-devel/1897d159-171a-4e26-821d-1750a224a918o%40googlegroups.com. > > -- > 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 view this discussion on the web visit > https://groups.google.com/d/msgid/sage-devel/c52d0e9f-c038-49d4-b00a-449023bd3ce5n%40googlegroups.com. -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/CAAWYfq0ujxE75s9-Lds2NfZyJZM3Frtzha7E5dC23xGyXnfcTQ%40mail.gmail.com.
