Hi, The following simple session triggers what I think is at least one bug, if not two:
sage: p=193379 sage: K=GF(p) sage: a=K(1) sage: b=K(191495) sage: c=K(109320) sage: d=K(167667) sage: e=103937 sage: a*c+b*d-e 102041 sage: vector([a,b])*vector([c,d])-e -91339 sage: -91339+e 12598 sage: vector([a,b])*vector([c,d]) 12599 Namely, the scalar product of GF(p) elements followed by a subtraction is negative (first bug). Then the negative value is off by one (second bug). Some weird coercion seem to happen between IntegerMod_int64 IntegerMod_int and ZZ: sage: type(vector([a,b])[0]) <type 'sage.rings.finite_rings.integer_mod.IntegerMod_int64'> sage: type(vector([a,b])*vector([c,d])) <type 'sage.rings.finite_rings.integer_mod.IntegerMod_int'> Are these known bugs? Best. Clément -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/efa76bd3-53ba-e1af-5e84-b3ea428836de%40gmail.com. For more options, visit https://groups.google.com/d/optout.
