On 2017-01-05 11:29, Daniel Krenn wrote: > On 2017-01-05 10:55, Daniel Krenn wrote: >> as there is no *canonical* coercion as no embedding of the number field >> is specified. >> >> How can I specify this embedding such that it is used e.g. for the >> symbolic I? > > This looks weird: I is defined in sage.libs.pynac.pynac via > K = QuadraticField(-1, 'I', embedding=CC.gen(), latex_name='i') > pynac_I = K.gen() > so there is an embedding defined, but QQbar this seems to be not > sufficient to recognize it as an embedding into QQbar.
It seems like the embedding is simply ignored in some sense: sage: QQbar(QuadraticField(-1, 'I', embedding=-CC.gen()).gen()) I whereas sage: CC(QuadraticField(-1, 'I', embedding=-CC.gen()).gen()) -1.00000000000000*I -- 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 sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
