1 var $ = require('../internals/export');
3 // eslint-disable-next-line es/no-math-atanh -- required for testing
4 var $atanh = Math.atanh;
8 // https://tc39.es/ecma262/#sec-math.atanh
9 // Tor Browser bug: Math.atanh(-0) -> 0
10 $({ target: 'Math', stat: true, forced: !($atanh && 1 / $atanh(-0) < 0) }, {
11 atanh: function atanh(x) {
12 return (x = +x) == 0 ? x : log((1 + x) / (1 - x)) / 2;