Re: [boost] [Review][PQS] Physical Quantities System review (May31through June 9)

From: Martin Bonner (martin.bonner_at_[hidden])
Date: 2006-06-07 07:23:00

----Original Message----
From: boost-bounces_at_[hidden]
[mailto:boost-bounces_at_[hidden]] On Behalf Of Paul Giaccone Sent:
07 June 2006 12:20 To: boost_at_[hidden]
Subject: Re: [boost] [Review][PQS] Physical Quantities System review
(May31through June 9) 

> Andy Little wrote:
>> Hi Paul,
>> 
>> "Paul A Bristow" <pbristow_at_[hidden]> wrote in message
>> news:E1FneN9-00014T-OY_at_he303war.uk.vianw.net...
>> 
>>> 4  It isn't immediately obvious to me how to ensure output in SI
>>> 'engineering' multiples, depending on the value.
>>> For example, 0.123 m outputs as 1.23 mm, but 1234.5 m outputs as
>>> 1.2345 km. 
>>> 
> 
> ...and this point too: 0.123 m = 123 mm or 1.23 decametres (but not
> 1.23 mm), so either the above is a bug or incorrectly transcribed.

<nit>
0.123 m = 1.23 decimetres = 0.0123 decametres.
</nit>
You can see why SI deprecated deca and deci.  :-)

-- 
Martin Bonner
Martin.Bonner_at_[hidden]
Pi Technology, Milton Hall, Ely Road, Milton, Cambridge, CB4 6WZ,
ENGLAND Tel: [phone]