You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
25 lines
757 B
25 lines
757 B
var $ = require('../internals/export'); |
|
var log1p = require('../internals/math-log1p'); |
|
|
|
// eslint-disable-next-line es-x/no-math-acosh -- required for testing |
|
var $acosh = Math.acosh; |
|
var log = Math.log; |
|
var sqrt = Math.sqrt; |
|
var LN2 = Math.LN2; |
|
|
|
var FORCED = !$acosh |
|
// V8 bug: https://code.google.com/p/v8/issues/detail?id=3509 |
|
|| Math.floor($acosh(Number.MAX_VALUE)) != 710 |
|
// Tor Browser bug: Math.acosh(Infinity) -> NaN |
|
|| $acosh(Infinity) != Infinity; |
|
|
|
// `Math.acosh` method |
|
// https://tc39.es/ecma262/#sec-math.acosh |
|
$({ target: 'Math', stat: true, forced: FORCED }, { |
|
acosh: function acosh(x) { |
|
var n = +x; |
|
return n < 1 ? NaN : n > 94906265.62425156 |
|
? log(n) + LN2 |
|
: log1p(n - 1 + sqrt(n - 1) * sqrt(n + 1)); |
|
} |
|
});
|
|
|