Version 1

[yaffs-website] / node_modules / core-js / library / modules / es6.math.acosh.js

diff --git a/node_modules/core-js/library/modules/es6.math.acosh.js b/node_modules/core-js/library/modules/es6.math.acosh.js
new file mode 100644 (file)
index 0000000..459f119
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+++ b/node_modules/core-js/library/modules/es6.math.acosh.js
@@ -0,0 +1,18 @@
+// 20.2.2.3 Math.acosh(x)
+var $export = require('./_export')
+  , log1p   = require('./_math-log1p')
+  , sqrt    = Math.sqrt
+  , $acosh  = Math.acosh;
+
+$export($export.S + $export.F * !($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: function acosh(x){
+    return (x = +x) < 1 ? NaN : x > 94906265.62425156
+      ? Math.log(x) + Math.LN2
+      : log1p(x - 1 + sqrt(x - 1) * sqrt(x + 1));
+  }
+});
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