# RE: Decimal digit property - What's it for?

From: Arcane Jill (arcanejill@ramonsky.com)
Date: Fri Nov 28 2003 - 05:09:25 EST

• Next message: Arcane Jill: "RE: Complex Combining"

Thanks, Jim. You're the only respondant who has actually bothered to
answer my specific question 'What possible use could any mechanical
algorithm make of the "decimal digit" property that it could not equally
well make of the "digit" or "numeric" properties?'. Nobody else even
made the attempt. /However/ - since you don't agree with the original
predicate (the definition of the Unicode "decimal digit" property), it's
not surprising that logical reasoning should lead you to different
conclusions.

Understand that this is not MY definition. It came from Unicode public
review issue #26 (http://www.unicode.org/review/pr-26.html). From my
(purely logical) point of view, a definition is not something you can
agree with or disagree with. It is simply an axiom from which
conclusions may be logically derived.

So, EITHER this is axiomatically the correct definition of "decimal
digit", as used by the Unicode consortium, OR it isn't. If it is, then
my question stands, and remains unanswered. If it isn't, then it is my
/original/ question (how does the Unicode consortium define the "decimal
digit" propery) is the one which remains unanswered.

Thanks again.
Jill

> -----Original Message-----
> From: Jim Allan [mailto:jallan@smrtytrek.com]
> Sent: Thursday, November 27, 2003 6:56 PM
> To: unicode@unicode.org
> Subject: Re: Decimal digit property - What's it for?
>
>
> Arcane Jill wrote:
>
> > It has been explained to me that the "decimal digit"
> property has the
> > following meaning: "Decimal numbers are those using in decimal-radix
> > number systems. In particular, the sequence of the ONE character
> > followed by the TWO character is interpreted as having the value of
> > twelve".
>
> I don't agree with that explanation.

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