On Fri, 31 Dec 2004, Aubrey Jaffer wrote:

>Another possibility is to use the word "natural" for nonnegative
>integers:
>
>exact           64.bit natural-number           #nA:natural-64
>exact           32.bit natural-number           #nA:natural-32
>exact           16.bit natural-number           #nA:natural-16
>exact           8.bit natural-number            #nA:natural-8

Nix.  Not what mathematicians mean by "natural numbers."
Guaranteed to cause confusion when someone presumes that
he can't store zero, or is allowed to divide by something
because it can't be zero, etc.  "Nonnegative" is the word
that means what you want in mathematics, "Unsigned" is the
word that means what you want in computer science.

			Bear