Well, the problem comes from a.matrix()
which does not work. This is because it receives an incorrect number of terms, so it cannot build the matrix. In turn, this is because the length of (a**i).list() depends on i, which is maybe unexpected. I have not tried to look further. Frederic Le mercredi 10 juillet 2013 23:49:54 UTC+2, Paul Mercat a écrit : > > If I define 'a' like this: > > R.<x>=PolynomialRing(Qp(2)); > P=2*x^2+1; > K.<a>=P.root_field(); > > > why 'a' has no attribute abs ? > It's not a big problem, because it's easy to compute the absolute value > from the norm, but it don't work : > > a.norm() > > gives > > TypeError: cannot construct an element of Full MatrixSpace of 2 by 2 dense > matrices over 2-adic > > Field with capped relative precision 20 from [0, 1 + O(2^20), 2^-1 + 1 + 2 + > 2^2 + 2^3 + 2^4 + 2^5 + > > 2^6 + 2^7 + 2^8 + 2^9 + 2^10 + 2^11 + 2^12 + 2^13 + 2^14 + 2^15 + 2^16 + 2^17 > + 2^18 + O(2^19), 0, > > O(2^20)]! > > > Somebody knows why this don't work ? > > -- 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 http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/groups/opt_out.
