Vincent Delecroix a écrit : > This is clearly what we want. If you have an operation involving > several real numbers with different precisions then you want that the > result has the least precision.
And in analogous situations where each precision corresponds to a well- defined ring, the idea that the result should live in the ring with the lowest precision agrees with the definition in terms of homomorphisms. For instance, K[[x]] is the projective limit of K[[x]]/x^n, n \in N. -- Marc -- 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.
