Searched defs:acosh (Results 1 - 4 of 4) sorted by relevance

/illumos-gate/usr/src/lib/libm/common/C/
H A Dacosh.c30 #pragma weak __acosh = acosh
34 * acosh(x)
37 * acosh(x) = log [ x + sqrt(x*x-1) ]
39 * acosh(x) := log(x)+ln2, if x is large; else
40 * acosh(x) := log(2x-1/(sqrt(x*x-1)+x)) if x > 2; else
41 * acosh(x) := log1p(t+sqrt(2.0*t+t*t)); where t = x-1.
44 * acosh(x) is NaN with signal if x < 1.
45 * acosh(NaN) is NaN without signal.
58 acosh(double x) { function
82 } else /* acosh(hug
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/illumos-gate/usr/src/lib/libast/common/uwin/
H A Dacosh.c39 static char sccsid[] = "@(#)acosh.c 8.1 (Berkeley) 6/4/93";
56 * acosh(x) = log [ x + sqrt(x*x-1) ]
58 * acosh(x) := log1p(x)+ln2, if (x > 1.0E20); else
59 * acosh(x) := log1p( sqrt(x-1) * (sqrt(x-1) + sqrt(x+1)) ) .
63 * acosh(x) is NaN with signal if x<1.
64 * acosh(NaN) is NaN without signal.
67 * acosh(x) returns the exact inverse hyperbolic cosine of x nearly
92 extern double acosh(x) function
/illumos-gate/usr/src/head/
H A Dtgmath.h46 #undef acosh macro
47 #define acosh(x) __tgmath_acosh(x) macro
/illumos-gate/usr/src/lib/libm1/common/
H A Dlibmv1.c32 #pragma weak acosh = __acosh macro

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