I use "radical integers" for the integer subset of these. Maybe "radical rationals" & "real radical rationals"? Are you including the cube roots of complex numbers that can't be expressed in real radicals, like cbrt(2+i)? Or the RealParts of these, as (cbrt(2+i)+cbrt(2-i))/2? Rich ---- Quoting Dan Asimov <dasimov@earthlink.net>:
. . . real numbers that can be expressed using integers, addition, subtraction, multiplication, division, and integer roots and powers -- starting with integers or rationals?
How about all such (real or) complex numbers?
(As distinguished from the rest of the algebraic numbers.)
--Dan
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