I get it, thanks. El miércoles, 2 de octubre de 2013 18:12:42 UTC+2, Nils Bruin escribió: > > Your example looks suspicious because you're calling _unset_embeddings and > then install an embedding. That's explicitly warned against in the > documentation. > > What you're finding is that QQbar.convert_map_from(F) returns a broken > map. That happens also if you don't try to register an embedding at allI > think *that* needs fixing, and I don't think that has anything to do with > coercions. > > In fact, if you install the embedding the way you're supposed to, the > conversion seems to pick it up: > > sage: F.<b>=NumberField(a.minpoly(),embedding=a) > sage: QQbar(b) == a > True >
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