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[Bug math/15307] New: casinh inaccurate for arguments close to i with imaginary part above 1
- From: "jsm28 at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Tue, 26 Mar 2013 22:44:14 +0000
- Subject: [Bug math/15307] New: casinh inaccurate for arguments close to i with imaginary part above 1
- Auto-submitted: auto-generated
http://sourceware.org/bugzilla/show_bug.cgi?id=15307
Bug #: 15307
Summary: casinh inaccurate for arguments close to i with
imaginary part above 1
Product: glibc
Version: 2.17
Status: NEW
Severity: normal
Priority: P2
Component: math
AssignedTo: unassigned@sourceware.org
ReportedBy: jsm28@gcc.gnu.org
Classification: Unclassified
casinh is inaccurate for arguments close to i but with imaginary part above 1.
For example, on x86_64, casinh (0x1p-52 + 0x1.0000000000001p0i) should give a
result with real part 0x1.8dc42193d5c03p-26 but gives one with real part
0x1.8dc4218000001p-26 instead. The same issue affects casin and cacos for
corresponding inputs.
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