+++ /dev/null
-var $ = require('../internals/export');
-var log1p = require('../internals/math-log1p');
-
-var nativeAcosh = Math.acosh;
-var log = Math.log;
-var sqrt = Math.sqrt;
-var LN2 = Math.LN2;
-
-var FORCED = !nativeAcosh
- // V8 bug: https://code.google.com/p/v8/issues/detail?id=3509
- || Math.floor(nativeAcosh(Number.MAX_VALUE)) != 710
- // Tor Browser bug: Math.acosh(Infinity) -> NaN
- || nativeAcosh(Infinity) != Infinity;
-
-// `Math.acosh` method
-// https://tc39.github.io/ecma262/#sec-math.acosh
-$({ target: 'Math', stat: true, forced: FORCED }, {
- acosh: function acosh(x) {
- return (x = +x) < 1 ? NaN : x > 94906265.62425156
- ? log(x) + LN2
- : log1p(x - 1 + sqrt(x - 1) * sqrt(x + 1));
- }
-});