Talk:Algebraic number

Article Checklist for "Algebraic number"

Workgroup category or categories	Mathematics Workgroup [Categories OK]
Article status	Stub: no more than a few sentences
Underlinked article?	No
Basic cleanup done?	Yes
Checklist last edited by	-Versuri 11:56, 26 March 2007 (CDT)

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things to add:

• links to "rational number" and "polynomial"
• a couple of examples - and put in the polynomial that sqrt(2) satisfies
• mention that some, but not all, algebraic numbers can be expressed using radicals - mention and link Galois
• the link to "countable" should probably point to a new page on cardinality

I think the link should be to Countable set. Andres Luure 03:09, 26 March 2007 (CDT)

characteristic?

In this sentence: "The algebraic numbers form a field; in fact, they are the smallest algebraically closed field with characteristic 0. " I don't know what "characteristic 0" means. Perhaps a definition or a link would be helpful. --Catherine Woodgold 21:23, 28 April 2007 (CDT)