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From: Paul A. Bristow (boost_at_[hidden])
Date: 2004-01-20 15:06:43

| -----Original Message-----
| From: boost-bounces_at_[hidden]
| [mailto:boost-bounces_at_[hidden]]On Behalf Of Phil Richards
| Sent: Monday, January 19, 2004 7:06 PM
| To: boost_at_[hidden]
| Subject: Re: [boost] Temperature/kelvins Aren't Special
| On Mon, 19 Jan 2004 04:12:41 -0500, Daryle Walker wrote:
| > I think a previous post ("Re: [boost] Re: Units libraries... (long reply)"
| > by Phil Richards) gave me the impression that the poster thought
| > temperature should get special treatment within an unit/dimension library.
| > I don't think it should.

| Nope, not me. I don't think it should get any special treatment - I was
| arguing against the assertion that Kelvins should have special treatment
| in the library.
| I specifically stated that I don't think any special cases are a good idea.
| phil

Nor me -

But this has raised the question in my mind whether some dimensions like length
and voltage can sensibly be negative whereas others like time and temperature
can only be positive.

Or is it only relative or differences which can be negative?

On the one hand enforcing the absolute versus relative distinction sounds good,
but I wonder if, in practice, it will cause so much trouble that the users


Paul A Bristow, Prizet Farmhouse, Kendal, Cumbria, LA8 8AB UK
+44 1539 561830 Mobile +44 7714 33 02 04

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