How to detect a double's significant digits

[Jeremy Bowers]

On Thu, 05 May 2005 20:08:46 -0700, Erik Max Francis wrote:
> Grant's point was that as significance is used in scientific studies,
> there's no way to answer the question without having the number in
> advance.

My point was that the original poster never defined "significance" in that
manner, and in the manner in which he seemed to be using the term, my
comments made sense. Which is why the first thing I said was he needs to
rigorously define what he means, and everything after that was predicated
on the assumption he seemed to be looking at consumed screen space.