I am puzzled why my answer to "a consistent notation for algebraic numbers" was deleted.
I've moved the answer to the comments, as suggested by the boilerplate. I was tempted to just repost the answer with a few more details... but I thought I should ask here before starting an edit war with the mods (which I would lose, of course!).
Any clarification would be most welcome.
EDIT: Thank you to all. I've written a new answer and posted it.