glibc/sysdeps/ieee754/dbl-64
Paul Zimmermann 43576de04a Improve the accuracy of tgamma (BZ #26983)
With this patch, the maximal known error for tgamma is now reduced to 9 ulps
for dbl-64, for all rounding modes. Since exhaustive testing is not possible
for dbl-64, it might be that there are still cases with an error larger than
9 ulps, but all known cases are fixed (intensive tests were done to find cases
with large errors).

Tested on x86_64 and powerpc (and by Adhemerval Zanella on aarch64, arm,
s390x, sparc, and i686).
Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-04-07 13:23:39 +02:00
..
asincos.tbl Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
atnat2.h math: Remove slow paths from atan2 [BZ #15267] 2021-03-11 14:26:36 +00:00
atnat.h math: Remove slow paths from atan [BZ #15267] 2021-03-11 14:26:36 +00:00
branred.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
branred.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dbl2mpn.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dla.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
e_acos.c
e_acosh.c Remove dbl-64/wordsize-64 (part 2) 2021-01-07 15:26:26 +00:00
e_asin.c math: Remove slow paths from asin and acos [BZ #15267] 2021-03-11 14:26:36 +00:00
e_atan2.c math: Remove slow paths from atan2 [BZ #15267] 2021-03-11 14:26:36 +00:00
e_atanh.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
e_cosh.c math: Add BZ#18980 fix back on dbl-64 cosh 2021-01-11 16:56:33 -03:00
e_exp2.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
e_exp10.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
e_exp_data.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
e_exp.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
e_fmod.c Remove dbl-64/wordsize-64 (part 2) 2021-01-07 15:26:26 +00:00
e_gamma_r.c Improve the accuracy of tgamma (BZ #26983) 2021-04-07 13:23:39 +02:00
e_hypot.c Add libm_alias_finite for _finite symbols 2020-01-03 10:02:04 -03:00
e_ilogb.c
e_j0.c Add libm_alias_finite for _finite symbols 2020-01-03 10:02:04 -03:00
e_j1.c Add libm_alias_finite for _finite symbols 2020-01-03 10:02:04 -03:00
e_jn.c Add libm_alias_finite for _finite symbols 2020-01-03 10:02:04 -03:00
e_lgamma_r.c Add libm_alias_finite for _finite symbols 2020-01-03 10:02:04 -03:00
e_log2_data.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
e_log2.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
e_log10.c Remove dbl-64/wordsize-64 (part 2) 2021-01-07 15:26:26 +00:00
e_log_data.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
e_log.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
e_pow_log_data.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
e_pow.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
e_remainder.c math: Remove mpa files [BZ #15267] 2021-03-11 14:26:36 +00:00
e_sinh.c Add libm_alias_finite for _finite symbols 2020-01-03 10:02:04 -03:00
e_sqrt.c math: Remove mpa files [BZ #15267] 2021-03-11 14:26:36 +00:00
gamma_product.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
gamma_productf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
k_rem_pio2.c
k_tan.c
lgamma_neg.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
lgamma_product.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
Makefile
math_config.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
math_err.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
mpn2dbl.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
mydefs.h math: Remove slow paths in tan [BZ #15267] 2021-03-11 14:26:36 +00:00
powtwo.tbl Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
root.tbl Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
s_asinh.c
s_atan.c math: Remove slow paths from atan [BZ #15267] 2021-03-11 14:26:36 +00:00
s_cbrt.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
s_ceil.c Use GCC builtins for ceil functions if desired. 2019-12-11 15:12:17 +01:00
s_copysign.c Use GCC builtins for copysign functions if desired. 2019-12-11 15:12:19 +01:00
s_cos.c
s_erf.c
s_expm1.c
s_f32xaddf64.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
s_f32xdivf64.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
s_f32xmulf64.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
s_f32xsubf64.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
s_fabs.c
s_fadd.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
s_fdiv.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
s_finite.c math: Use wordsize-64 version for finite 2019-06-12 14:32:39 -03:00
s_floor.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
s_fma.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
s_fmaf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
s_fmul.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
s_fpclassify.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
s_frexp.c Remove dbl-64/wordsize-64 (part 2) 2021-01-07 15:26:26 +00:00
s_fromfp_main.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
s_fromfp.c
s_fromfpx.c
s_fsub.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
s_getpayload.c Remove dbl-64/wordsize-64 (part 2) 2021-01-07 15:26:26 +00:00
s_isinf.c
s_isnan.c
s_issignaling.c Remove dbl-64/wordsize-64 (part 2) 2021-01-07 15:26:26 +00:00
s_llrint.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
s_llround.c Remove dbl-64/wordsize-64 (part 2) 2021-01-07 15:26:26 +00:00
s_log1p.c
s_logb.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
s_lrint.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
s_lround.c Remove dbl-64/wordsize-64 (part 2) 2021-01-07 15:26:26 +00:00
s_modf.c Remove dbl-64/wordsize-64 (part 2) 2021-01-07 15:26:26 +00:00
s_nearbyint.c Use GCC builtins for nearbyint functions if desired. 2019-12-11 15:12:15 +01:00
s_nexttoward.c
s_nextup.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
s_remquo.c Remove dbl-64/wordsize-64 (part 2) 2021-01-07 15:26:26 +00:00
s_rint.c Use GCC builtins for rint functions if desired. 2019-12-11 15:12:16 +01:00
s_round.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
s_roundeven.c Remove dbl-64/wordsize-64 (part 2) 2021-01-07 15:26:26 +00:00
s_scalbln.c Remove dbl-64/wordsize-64 (part 2) 2021-01-07 15:26:26 +00:00
s_scalbn.c Remove dbl-64/wordsize-64 (part 2) 2021-01-07 15:26:26 +00:00
s_setpayload_main.c Remove dbl-64/wordsize-64 (part 2) 2021-01-07 15:26:26 +00:00
s_setpayload.c
s_setpayloadsig.c
s_signbit.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
s_sin.c math: Remove mpa files [BZ #15267] 2021-03-11 14:26:36 +00:00
s_sincos.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
s_tan.c math: Remove slow paths in tan [BZ #15267] 2021-03-11 14:26:36 +00:00
s_tanh.c
s_totalorder.c Remove dbl-64/wordsize-64 (part 2) 2021-01-07 15:26:26 +00:00
s_totalordermag.c Remove dbl-64/wordsize-64 (part 2) 2021-01-07 15:26:26 +00:00
s_trunc.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
s_ufromfp.c
s_ufromfpx.c
sincostab.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
uasncs.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
uatan.tbl math: Remove mpa files [BZ #15267] 2021-03-11 14:26:36 +00:00
urem.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
usncs.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
utan.h math: Remove slow paths in tan [BZ #15267] 2021-03-11 14:26:36 +00:00
utan.tbl math: Remove slow paths in tan [BZ #15267] 2021-03-11 14:26:36 +00:00
w_exp2.c
w_exp.c
w_log2.c
w_log.c
w_pow.c
x2y2m1.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
x2y2m1f.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00