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[Bug math/11521] Ctanh Returns Incorrect Values
- From: "jsm28 at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sources dot redhat dot com
- Date: Tue, 06 Mar 2012 18:14:33 +0000
- Subject: [Bug math/11521] Ctanh Returns Incorrect Values
- Auto-submitted: auto-generated
- References: <bug-11521-131@http.sourceware.org/bugzilla/>
http://sourceware.org/bugzilla/show_bug.cgi?id=11521
Joseph Myers <jsm28 at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|aj at suse dot de |unassigned at sourceware
| |dot org
--- Comment #4 from Joseph Myers <jsm28 at gcc dot gnu.org> 2012-03-06 18:14:33 UTC ---
Confirmed with current sources. The patch helps with some cases (and since
it's basically making the same changes to three files, might be just small
enough to use without a copyright assignment) but you still get underflow in
cases where the result should have a subnormal imaginary part (e.g. an argument
of 710 + i). The same issues will apply to ctan.
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