6 Commits

Author	SHA1	Message	Date
Joseph Myers	5a608ccc2d	Fix tanf spurious underflows (bug 18221). ... The flt-32 implementation of tanf produces spurious underflow exceptions for some small arguments, through computing values on the order of x^5. This patch fixes this by adjusting the threshold for returning x (or, as applicable, +/- 1/x) to 2**-13 (the next term in the power series being x^3/3). Tested for x86_64 and x86. [BZ #18221] * sysdeps/ieee754/flt-32/k_tanf.c (__kernel_tanf): Use 2**-13 not 2**-28 as threshold for returning x or +/- 1/x. * math/auto-libm-test-in: Add more tests of tan. * math/auto-libm-test-out: Regenerated.	2015-05-15 17:47:29 +00:00
Joseph Myers	9c84384cc1	Remove trailing whitespace.	2013-06-05 20:44:03 +00:00
Joseph Myers	9ad63c23ea	Fix tanf underflow close to pi/4 (bug 14154).	2012-07-06 21:19:38 +00:00
Richard Henderson	1ed0291c31	Use <> for math.h and math_private.h everywhere. ... Entire tree edited via find | grep | sed.	2012-03-09 16:09:10 -08:00
Joseph Myers	8db2188281	Remove __STDC__ conditionals from libm.	2012-01-27 17:29:45 +00:00
Ulrich Drepper	abfbdde177	Update.	1999-07-14 00:54:57 +00:00