diff options
Diffstat (limited to 'lib/msun/src/e_sinh.c')
| -rw-r--r-- | lib/msun/src/e_sinh.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/lib/msun/src/e_sinh.c b/lib/msun/src/e_sinh.c index f39019c..9f68f43 100644 --- a/lib/msun/src/e_sinh.c +++ b/lib/msun/src/e_sinh.c @@ -5,25 +5,25 @@ * * Developed at SunPro, a Sun Microsystems, Inc. business. * Permission to use, copy, modify, and distribute this - * software is freely granted, provided that this notice + * software is freely granted, provided that this notice * is preserved. * ==================================================== */ #ifndef lint -static char rcsid[] = "$Id: e_sinh.c,v 1.5 1994/08/18 23:06:03 jtc Exp $"; +static char rcsid[] = "$Id: e_sinh.c,v 1.1.1.1 1994/08/19 09:39:44 jkh Exp $"; #endif /* __ieee754_sinh(x) - * Method : + * Method : * mathematically sinh(x) if defined to be (exp(x)-exp(-x))/2 - * 1. Replace x by |x| (sinh(-x) = -sinh(x)). - * 2. + * 1. Replace x by |x| (sinh(-x) = -sinh(x)). + * 2. * E + E/(E+1) * 0 <= x <= 22 : sinh(x) := --------------, E=expm1(x) * 2 * - * 22 <= x <= lnovft : sinh(x) := exp(x)/2 + * 22 <= x <= lnovft : sinh(x) := exp(x)/2 * lnovft <= x <= ln2ovft: sinh(x) := exp(x/2)/2 * exp(x/2) * ln2ovft < x : sinh(x) := x*shuge (overflow) * @@ -47,7 +47,7 @@ static double one = 1.0, shuge = 1.0e307; double __ieee754_sinh(x) double x; #endif -{ +{ double t,w,h; int32_t ix,jx; u_int32_t lx; @@ -57,7 +57,7 @@ static double one = 1.0, shuge = 1.0e307; ix = jx&0x7fffffff; /* x is INF or NaN */ - if(ix>=0x7ff00000) return x+x; + if(ix>=0x7ff00000) return x+x; h = 0.5; if (jx<0) h = -h; |
