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Re: [Axiom-developer] Unit package question - Reply to 1st half
From: |
C Y |
Subject: |
Re: [Axiom-developer] Unit package question - Reply to 1st half |
Date: |
Tue, 23 Aug 2005 21:38:34 -0700 (PDT) |
--- William Sit <address@hidden> wrote:
> Actually, we can even do better, without the user doing a
> setUnitLength(nm), if the only reason to use nm instead of
> m is to get rid of annoying powers of 10. For numerical
> output (the problem does not arise for symbolic output), the
> output coerce routine can sense the magnitude of the value in the
> unit and shift the decimal place appropriately and adjusting
> using a suitable prefix. So one stays in SI but the output
> gets rid of the powers of 10.
Are nanometer, etc. considered part of SI then? Nifty idea, and one
worth following up on, but I would still like to peg things at nm, for
the following reason/scenario: Let's say I know that my calculations
and data SHOULD be coming out in the nm range. I set my unit for
length to be nm, proceed, and mostly see small numbers of nm. All well
and good, until suddenly I have a huge or very small number appearing.
Red flag! Not close to 1 nm. With autoscaling, the number would have
stayed near one and the unit would have changed. Sometimes useful, I
agree, but I can see arguments for both sides here.
Cheers,
CY
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- Re: [Axiom-developer] Unit package question, (continued)
- Re: [Axiom-developer] Unit package question, C Y, 2005/08/23
- Re: [Axiom-developer] Unit package question, C Y, 2005/08/23
- Re: [Axiom-developer] Unit package question, William Sit, 2005/08/23
- Re: [Axiom-developer] Unit package question, William Sit, 2005/08/23
- Re: [Axiom-developer] Unit package question - Reply to 1st half, C Y, 2005/08/23
- Re: [Axiom-developer] Unit package question - Reply to 1st half, William Sit, 2005/08/23
- Re: [Axiom-developer] Unit package question - Reply to 1st half, C Y, 2005/08/24
- Re: [Axiom-developer] Unit package question - Reply to 1st half, William Sit, 2005/08/24
- Re: [Axiom-developer] Unit package question - Reply to 1st half, C Y, 2005/08/24
- Re: [Axiom-developer] Unit package question - Reply to 1st half, William Sit, 2005/08/23
- Re: [Axiom-developer] Unit package question - Reply to 1st half,
C Y <=
- Re: [Axiom-developer] Unit package question - Reply to 1st half, William Sit, 2005/08/24
- Re: [Axiom-developer] Unit package question - Reply to 1st half, C Y, 2005/08/24
- Re: [Axiom-developer] Unit package question - part 2, C Y, 2005/08/24
- Re: [Axiom-developer] Unit package question - part 2, William Sit, 2005/08/24
- Re: [Axiom-developer] Unit package question - part 2, C Y, 2005/08/24
- [Axiom-developer] strict vs. fuzzy Axiom, Ralf Hemmecke, 2005/08/25