AlgebraicNumberNorm

AlgebraicNumberNorm[a] gives the norm of the algebraic number a.

Examples

Find the norm of an algebraic number:

AlgebraicNumberNorm[Sqrt[2]]
(* -2 *)

Norm of a complex algebraic number:

AlgebraicNumberNorm[1 + I]
(* 2 *)

Please visit the official Wolfram Language Reference for more details.