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