diff options
Diffstat (limited to 'src/math/asinh.c')
| -rw-r--r-- | src/math/asinh.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/src/math/asinh.c b/src/math/asinh.c index 92aa9446..11bbd71a 100644 --- a/src/math/asinh.c +++ b/src/math/asinh.c @@ -23,7 +23,6 @@ #include "libm.h" static const double -one = 1.00000000000000000000e+00, /* 0x3FF00000, 0x00000000 */ ln2 = 6.93147180559945286227e-01, /* 0x3FE62E42, 0xFEFA39EF */ huge= 1.00000000000000000000e+300; @@ -38,17 +37,17 @@ double asinh(double x) return x+x; if (ix < 0x3e300000) { /* |x| < 2**-28 */ /* return x inexact except 0 */ - if (huge+x > one) + if (huge+x > 1.0) return x; } if (ix > 0x41b00000) { /* |x| > 2**28 */ w = log(fabs(x)) + ln2; } else if (ix > 0x40000000) { /* 2**28 > |x| > 2.0 */ t = fabs(x); - w = log(2.0*t + one/(sqrt(x*x+one)+t)); + w = log(2.0*t + 1.0/(sqrt(x*x+1.0)+t)); } else { /* 2.0 > |x| > 2**-28 */ t = x*x; - w =log1p(fabs(x) + t/(one+sqrt(one+t))); + w =log1p(fabs(x) + t/(1.0+sqrt(1.0+t))); } if (hx > 0) return w; |