first

node_modules/core-js/modules/es.math.acosh.js

@@ -0,0 +1,26 @@
+'use strict';
+var $ = require('../internals/export');
+var log1p = require('../internals/math-log1p');
+
+// eslint-disable-next-line es/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));
+  }
+});