Talk:Eisenstein integer

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[edit] Ordinary (rational) integer

"Thus the norm of an Eisenstein integer is always an ordinary (rational) integer."

Isn't every integer already rational? Obscurans 17:43, 12 May 2007 (UTC)

"Rational integer" is a term of art used to describe the whole numbers in contexts where "integer" may refer to more general algebraic integers. —David Eppstein 18:47, 12 May 2007 (UTC)