On Sunday, January 8, 2017 at 12:32:51 AM UTC-8, Daniel Krenn wrote: > > > Is it possible to define one embedding from a number field into CC and > another into QQbar (at "the same time")? > > No. A field only has one slot for an embedding. This restriction doesn't have good technical grounds for existing. It does make it a tiny bit harder to introduce inconsistencies in the coercion graph, though.
If a field embeds into QQbar, then there should be an implied coercion into CC, though: QQbar as implemented in sage is a subfield of the field of complex numbers (as you can see from how the elements print). And indeed this works: sage: K.<a>=NumberField(x^3-2,embedding=QQbar(2^(1/3))) sage: a+CC(1) 2.25992104989487 -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
