diff options
Diffstat (limited to 'math/s_clog.c')
| -rw-r--r-- | math/s_clog.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/math/s_clog.c b/math/s_clog.c index 2593066001..79b1f375d7 100644 --- a/math/s_clog.c +++ b/math/s_clog.c @@ -85,6 +85,19 @@ __clog (__complex__ double x) d2m1 += absy * absy; __real__ result = __log1p (d2m1) / 2.0; } + else if (absx < 1.0 + && absx >= 0.75 + && absy < DBL_EPSILON / 2.0 + && scale == 0) + { + double d2m1 = (absx - 1.0) * (absx + 1.0); + __real__ result = __log1p (d2m1) / 2.0; + } + else if (absx < 1.0 && (absx >= 0.75 || absy >= 0.5) && scale == 0) + { + double d2m1 = __x2y2m1 (absx, absy); + __real__ result = __log1p (d2m1) / 2.0; + } else { double d = __ieee754_hypot (absx, absy); |