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* [Bug math/16492] large error in y0
[not found] <bug-16492-131@http.sourceware.org/bugzilla/>
@ 2014-01-22 17:16 ` jsm28 at gcc dot gnu.org
2014-06-13 8:54 ` fweimer at redhat dot com
` (2 subsequent siblings)
3 siblings, 0 replies; 4+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2014-01-22 17:16 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=16492
Joseph Myers <jsm28 at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|libc |math
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* [Bug math/16492] large error in y0
[not found] <bug-16492-131@http.sourceware.org/bugzilla/>
2014-01-22 17:16 ` [Bug math/16492] large error in y0 jsm28 at gcc dot gnu.org
@ 2014-06-13 8:54 ` fweimer at redhat dot com
2021-03-31 5:45 ` [Bug math/16492] large error in y0, y0l and y0f128 zimmerma+gcc at loria dot fr
2021-04-02 4:45 ` zimmerma+gcc at loria dot fr
3 siblings, 0 replies; 4+ messages in thread
From: fweimer at redhat dot com @ 2014-06-13 8:54 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=16492
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Flags| |security-
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* [Bug math/16492] large error in y0, y0l and y0f128
[not found] <bug-16492-131@http.sourceware.org/bugzilla/>
2014-01-22 17:16 ` [Bug math/16492] large error in y0 jsm28 at gcc dot gnu.org
2014-06-13 8:54 ` fweimer at redhat dot com
@ 2021-03-31 5:45 ` zimmerma+gcc at loria dot fr
2021-04-02 4:45 ` zimmerma+gcc at loria dot fr
3 siblings, 0 replies; 4+ messages in thread
From: zimmerma+gcc at loria dot fr @ 2021-03-31 5:45 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=16492
Paul Zimmermann <zimmerma+gcc at loria dot fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|large error in y0 |large error in y0, y0l and
| |y0f128
--- Comment #1 from Paul Zimmermann <zimmerma+gcc at loria dot fr> ---
cf https://members.loria.fr/PZimmermann/papers/accuracy.pdf for largest known
errors found so far. Here are the inputs of the version from February 5, 2021,
corresponding to GNU libc 2.33.
dbl-64:
y0 0x1.c982eb8d417eap-1 (5.93e15 ulps)
ldbl-96:
y0 0xe.4c175c6a0bf51e8p-4l (1.38e18 ulps)
float128:
y0 0x6.b99c822052e965e1754eb5ffeb08p+4 (1.69e33 ulps)
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* [Bug math/16492] large error in y0, y0l and y0f128
[not found] <bug-16492-131@http.sourceware.org/bugzilla/>
` (2 preceding siblings ...)
2021-03-31 5:45 ` [Bug math/16492] large error in y0, y0l and y0f128 zimmerma+gcc at loria dot fr
@ 2021-04-02 4:45 ` zimmerma+gcc at loria dot fr
3 siblings, 0 replies; 4+ messages in thread
From: zimmerma+gcc at loria dot fr @ 2021-04-02 4:45 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=16492
--- Comment #2 from Paul Zimmermann <zimmerma+gcc at loria dot fr> ---
The commit that reduces the errors in the binary32 format is 9acda61
(April 1st, 2021). See also #27670 for the other Bessel functions (j0, j1, y1).
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[not found] <bug-16492-131@http.sourceware.org/bugzilla/>
2014-01-22 17:16 ` [Bug math/16492] large error in y0 jsm28 at gcc dot gnu.org
2014-06-13 8:54 ` fweimer at redhat dot com
2021-03-31 5:45 ` [Bug math/16492] large error in y0, y0l and y0f128 zimmerma+gcc at loria dot fr
2021-04-02 4:45 ` zimmerma+gcc at loria dot fr
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