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File size:
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| 1 | 'use strict';
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| 2 | var $ = require('../internals/export');
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| 3 |
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| 4 | // eslint-disable-next-line es/no-math-asinh -- required for testing
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| 5 | var $asinh = Math.asinh;
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| 6 | var log = Math.log;
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| 7 | var sqrt = Math.sqrt;
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| 8 |
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| 9 | function asinh(x) {
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| 10 | var n = +x;
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| 11 | return !isFinite(n) || n === 0 ? n : n < 0 ? -asinh(-n) : log(n + sqrt(n * n + 1));
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| 12 | }
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| 13 |
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| 14 | var FORCED = !($asinh && 1 / $asinh(0) > 0);
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| 15 |
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| 16 | // `Math.asinh` method
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| 17 | // https://tc39.es/ecma262/#sec-math.asinh
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| 18 | // Tor Browser bug: Math.asinh(0) -> -0
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| 19 | $({ target: 'Math', stat: true, forced: FORCED }, {
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| 20 | asinh: asinh
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| 21 | });
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