From: Joseph Myers <josmyers@redhat.com>
To: Paul Zimmermann <Paul.Zimmermann@inria.fr>
Cc: libc-alpha@sourceware.org, vincenzo.innocente@cern.ch,
riemannic@gmail.com, johnmather@sidefx.com
Subject: Re: Accuracy of Mathematical Functions
Date: Tue, 6 Aug 2024 15:27:14 +0000 (UTC) [thread overview]
Message-ID: <16d6b7a0-54f7-17b1-305-7ed577786a4c@redhat.com> (raw)
In-Reply-To: <p9u0plql3km7.fsf@coriandre.loria.fr>
On Tue, 6 Aug 2024, Paul Zimmermann wrote:
> Dear all,
>
> we have updated our comparison:
>
> https://members.loria.fr/PZimmermann/papers/accuracy.pdf
>
> This update is for GNU libc 2.40:
>
> * it includes the new functions exp10m1, exp2m1, log10p1, log2p1
> added in 2.40 (for all formats)
The table for single precision only has exp10m1, not the other three
functions.
Also, the tables with inputs giving largest known errors don't seem
consistent about whether they include functions not implemented in the
relevant libm implementations. For example, "Table 14: Double extended
precision: OpenLibm and Musl." has empty lines for j0, j1, y0 and y1, but
various such tables do not have blank lines for the four C23 functions
newly added to glibc. My expectation would be that either all the tables
include all the functions (even when the corresponding lines are blank),
or the blank lines for unimplemented functions are consistently omitted
across all the tables.
--
Joseph S. Myers
josmyers@redhat.com
next prev parent reply other threads:[~2024-08-06 15:27 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-06 12:24 Paul Zimmermann
2024-08-06 15:27 ` Joseph Myers [this message]
2024-08-07 10:37 ` Paul Zimmermann
2024-08-08 16:35 ` Joseph Myers
2024-08-09 8:16 ` Paul Zimmermann
2024-08-09 12:54 ` Adhemerval Zanella Netto
2024-08-09 15:57 ` Joseph Myers
-- strict thread matches above, loose matches on Subject: below --
2024-02-15 14:47 Paul Zimmermann
2023-09-21 7:11 Paul Zimmermann
2023-02-14 8:05 Paul Zimmermann
2022-08-29 10:41 Paul Zimmermann
2022-02-11 8:22 Paul Zimmermann
2022-02-11 18:23 ` Joseph Myers
2022-02-12 6:39 ` Paul Zimmermann
2022-02-15 1:52 ` Joseph Myers
2021-09-07 14:45 Paul Zimmermann
2021-02-05 10:35 accuracy of mathematical functions Paul Zimmermann
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