On Sun, 20 Jul 2008 14:03:39 -0600, Virgil
<Virgil@[EMAIL PROTECTED]
> wrote in
<news:Virgil-0765B6.14033920072008@[EMAIL PROTECTED]
>
in alt.algebra.help:
> In article <1usfqoaxp7374.gz6czvua09cx.dlg@[EMAIL PROTECTED]
>,
> "Brian M. Scott" <b.scott@[EMAIL PROTECTED]
> wrote:
>> If you want the set of
>> positive integers, use Z+, which is wholly unambiguous.
>> (The '+' should be a superscript.)
> As in "Z^+"?
> Superscripts in newsnet postings are usually indicated by
> a preceding "^" and subscripts by a preceding "_". For
> super- or sub-scripts of more than one character, they
> may be parenthesized to avoid ambiguity.
I'm aware of all that. Over the years you must have seen me
use those conventions. However, 'Z+' is unambiguous and
more readable than 'Z^+', so I consider it vastly preferable
for actual use. My parenthetical comment to Jack was merely
to ensure that he knew what to use or look for in a medium
less limited typographically.
Brian
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