diff options
Diffstat (limited to 'math/s_clog.c')
| -rw-r--r-- | math/s_clog.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/math/s_clog.c b/math/s_clog.c index e28aa5157d..2593066001 100644 --- a/math/s_clog.c +++ b/math/s_clog.c @@ -78,6 +78,13 @@ __clog (__complex__ double x) else __real__ result = __log1p (absy2) / 2.0; } + else if (absx > 1.0 && absx < 2.0 && absy < 1.0 && scale == 0) + { + double d2m1 = (absx - 1.0) * (absx + 1.0); + if (absy >= DBL_EPSILON) + d2m1 += absy * absy; + __real__ result = __log1p (d2m1) / 2.0; + } else { double d = __ieee754_hypot (absx, absy); |