Date: Tue, 21 Dec 2021 08:47:49 -0800 From: Steve Kargl <sgk@troutmask.apl.washington.edu> To: Mark Murray <markm@freebsd.org>, freebsd-hackers@freebsd.org, freebsd-current@freebsd.org Subject: Re: What to do about tgammal? Message-ID: <20211221164749.GA81666@troutmask.apl.washington.edu> In-Reply-To: <YcHo0HX6K794my9g@emphyrio.blackend.org> References: <813F29E3-8478-4282-9518-5943DE7B5492@FreeBSD.org> <20211214215106.GA50381@troutmask.apl.washington.edu> <F63407DF-B7CF-4C7B-86AB-1D99EB6C6FC7@FreeBSD.org> <20211218035222.GA68916@troutmask.apl.washington.edu> <6C888EBF-1734-4EDC-8DBF-D2BA2454C37D@FreeBSD.org> <20211218175151.GA71197@troutmask.apl.washington.edu> <8011E549-1DEE-4B1B-BCC9-4604E155F4DC@FreeBSD.org> <YcBX2cAxi%2B9gBDiW@emphyrio.blackend.org> <20211221004819.GA79153@troutmask.apl.washington.edu> <YcHo0HX6K794my9g@emphyrio.blackend.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Tue, Dec 21, 2021 at 03:46:40PM +0100, Marc Fonvieille wrote:
> Le 20.12.2021 16:48, Steve Kargl a écrit :
> > On Mon, Dec 20, 2021 at 11:15:53AM +0100, Marc Fonvieille wrote:
> > >
> > > I assume what Steve is talking about is the corresponding value in
> > > decimal of the number of ULP.
> > >
> >
> > Bad assumption. Please read Goldberg's paper. I am talking
> > about ULP in the underlying floating point format.
> >
>
> Thanks, it's more clear now: it's the ULP value.
> Is your tlibm_libm program available for testing ? If I find time I'd like to
> do some tests.
>
Not at the moment. tlibm only handles math functions with
a single real agrument [1]. I've been thinking about adding
the 2 argument functions such as atan2 and complex argument
function, but lack the time. I also need to improve the man
page to decoment the default domain for each function and its
complete domain.
[1] acos, acosh, asin, asinh, atan, atanh, cbrt, cos, cosh, erf,
erfc, exp, exp2, expm1, j0, j1, lgamma, log, log10, log1p,
log2, sin, sinh, sqrt, tan, tanh, tgamma, y0, y1.
--
Steve
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20211221164749.GA81666>