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15 lines
446 B
15 lines
446 B
var $ = require('../internals/export'); |
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// eslint-disable-next-line es-x/no-math-atanh -- required for testing |
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var $atanh = Math.atanh; |
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var log = Math.log; |
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// `Math.atanh` method |
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// https://tc39.es/ecma262/#sec-math.atanh |
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// Tor Browser bug: Math.atanh(-0) -> 0 |
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$({ target: 'Math', stat: true, forced: !($atanh && 1 / $atanh(-0) < 0) }, { |
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atanh: function atanh(x) { |
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var n = +x; |
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return n == 0 ? n : log((1 + n) / (1 - n)) / 2; |
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} |
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});
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