I want to take an number field element embedded in the symbolic ring like the imaginary I and add it to an algebraic number: sage: I.pyobject() + QQbar(sqrt(2)) This results in TypeError: unsupported operand parent(s) for '+': 'Number Field in I with defining polynomial x^2 + 1' and 'Algebraic Field' 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? I've tried sage: F = NumberField(x^2 + 1, 'i', embedding=QQbar(I)) which makes sage: F.0 + QQbar(sqrt(2)) 1.414213562373095? + 1*I work. However, sage: SR(F.0) I so it is converted to the existing I and the example at the top sage: SR(F.0).pyobject() + QQbar(sqrt(2)) fails again. Daniel -- 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.
