Behavior of mpf_eq near zero
vincent at vinc17.net
Mon Apr 13 11:18:32 UTC 2015
On 2015-04-13 13:12:07 +0200, Marc Glisse wrote:
> On Mon, 13 Apr 2015, Vincent Lefevre wrote:
> >On 2015-04-13 11:58:15 +0200, Marc Glisse wrote:
> >>Doesn't the manual already say that the whole mpf is obsolete?
> >No, it just seems to discourage its use *a little*:
> >| Note that the `mpf' functions are _not_ intended as a smooth
> >| extension to IEEE P754 arithmetic. In particular results obtained on
> >| one computer often differ from the results on a computer with a
> >| different word size.
> >| The GMP extension library MPFR (`http://mpfr.org') is an alternative
> >| to GMP's `mpf' functions. MPFR provides well-defined precision and
> >| accurate rounding, and thereby naturally extends IEEE P754.
> "New projects should strongly consider using the much more complete GMP
> extension library mpfr instead of mpf."
But this is not the GMP manual, which contains the official
Vincent Lefèvre <vincent at vinc17.net> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
More information about the gmp-discuss