Donna;

Personally I've never seen significant digit aritmetic (which is only meningful for display of numbers) built in to a language. I have never used Mathematica, MatLab nor Maple, so I could just be sheltered. I could posit building utilities to handle it:

  '12.3' plusSD '.0012'
12
  '12.3' timesSD '45.6'
561

so, it's doable, and the maintainers of one database we resold swore by it, but no one seriosly wanted to pay for it as a feature. I never saw much consideration for it beyond first-year science labs.

YMMV, of course.
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----- Original Message ----- From: "dly" <[EMAIL PROTECTED]>
To: "General forum" <[email protected]>
Sent: Thursday, June 29, 2006 11:08 AM
Subject: Re: [Jgeneral] significant digits


Now this was my original point!

I wanted to know the SIGNIFICANT digits. (oddly enough the subject of my post) and I wanted this to be reflected no matter what the for of display or internal storage.

see my IMD (in my dreams) post


Donna
[EMAIL PROTECTED]



On 29-Jun-06, at 12:22 PM, Don Guinn wrote:

I remember something about a convention which has been lost with the advent of computers of writing a number, say "2.5" implied that the measurement was good to a tenth, where "2.500" implied it was good to a thousant.


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