[QUANTITY] Why quantities always have errors

[Patrick Dowler]

On Monday 17 November 2003 09:01, Brian Thomas wrote:
> On Monday 17 November 2003 11:21 am, DIDELON Pierre wrote:
> > Why trying to forbidd the concept of number without error
> > if it can be introduce (for free) and claim as necessary by some
>
> people?
>
> 	I for one believe it is "an error" to have a number without an
> error.


So presumably it is wrong to write the eqution for a parabola as y = x^2
and not spec ify the error in "2"?? Last time I checked, 2 was a number.

-- 
Patrick Dowler
Tel/Tél: (250) 363-6914                  | fax/télécopieur: (250) 363-0045
Canadian Astronomy Data Centre   | Centre canadien de donnees astronomiques
National Research Council Canada | Conseil national de recherches Canada
Government of Canada                  | Gouvernement du Canada
5071 West Saanich Road               | 5071, chemin West Saanich
Victoria, BC                                  | Victoria (C.-B.)