Re: roundTiesToEven in precision 1
> From: Dan Zuras Intervals <intervals08@xxxxxxxxxxxxxx>
> Subject: Re: roundTiesToEven in precision 1 Date: Tue, 24 Mar 2009 21:28:59 -0700
>
>
> Vincent,
>
> I'm not quite sure what you mean by precision 1 but the
> context of your question suggests that 754 breaks down
> when p = 1.
>
> So, if you are suggesting that things break down when
> one goes to so small a precision, I think this is likely.
>
> We debated making some statement about this in the text
> of the standard but as the whole purpose of extended &
> extendable precisions was to go beyond the other precisions
> available, we thought it an unnecessary thing to point out.
Well, this is a bit important as precision 1 can be used for output
by other standards, e.g. the ISO C standard. And this is what my
program was showing.
> Still, I believe you are correct.
>
> Yours,
>
> Dan
Regards,
--
Vincent Lefèvre <vincent@xxxxxxxxxx> - Web: <http://www.vinc17.org/>
100% accessible validated (X)HTML - Blog: <http://www.vinc17.org/blog/>
Work: CR INRIA - computer arithmetic / Arenaire project (LIP, ENS-Lyon)