Re: What to do about tgammal?

On Tue, Dec 14, 2021 at 3:23 PM Mark Murray <markm@freebsd.org> wrote:

> On 14 Dec 2021, at 21:51, Steve Kargl <sgk@troutmask.apl.washington.edu>
> wrote:
> > Interval          max ULP          x at Max ULP
> > [6,1755.1]        0.873414 at 1.480588145237629047468e+03
> > [1.0662,6]        0.861508 at 1.999467927053585410537e+00
> > [1.01e-17,1.0661] 0.938041 at 1.023286481537296307856e+00
> > [-1.9999,-1.0001] 3.157770 at -1.246957268051453610329e+00
> > [-2.9999,-2.0001] 2.987659 at -2.220949465449893090070e+00
> >
> > Note, 1.01e-17 can be reduced to soemthing like 1.01e-19 or
>
> Extra diffs most welcome!
>

Those results have allayed my fears. Is 1e-17 sufficient to commit these
changes, or do
we need to work to get it down to 1e-19 for it to be acceptable?

Warner