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rOACCT/node_modules/core-js/modules/es.math.atanh.js
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es.math.atanh.js
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			var $ = require('../internals/export');

			// eslint-disable-next-line es/no-math-atanh -- required for testing
			var $atanh = Math.atanh;
			var log = Math.log;

			// `Math.atanh` method
			// https://tc39.es/ecma262/#sec-math.atanh
			// Tor Browser bug: Math.atanh(-0) -> 0
			$({ target: 'Math', stat: true, forced: !($atanh && 1 / $atanh(-0) < 0) }, {
			atanh: function atanh(x) {
			var n = +x;
			return n == 0 ? n : log((1 + n) / (1 - n)) / 2;
			}
			});