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

diff --git a/node_modules/core-js/library/modules/es6.math.atanh.js b/node_modules/core-js/library/modules/es6.math.atanh.js
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+// 20.2.2.7 Math.atanh(x)
+var $export = require('./_export')
+  , $atanh  = Math.atanh;
+
+// Tor Browser bug: Math.atanh(-0) -> 0 
+$export($export.S + $export.F * !($atanh && 1 / $atanh(-0) < 0), 'Math', {
+  atanh: function atanh(x){
+    return (x = +x) == 0 ? x : Math.log((1 + x) / (1 - x)) / 2;
+  }
+});
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