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24 lines
669 B
24 lines
669 B
4 weeks ago
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'use strict';
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var $ = require('../internals/export');
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var fails = require('../internals/fails');
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var expm1 = require('../internals/math-expm1');
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var abs = Math.abs;
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var exp = Math.exp;
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var E = Math.E;
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var FORCED = fails(function () {
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// eslint-disable-next-line es/no-math-sinh -- required for testing
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return Math.sinh(-2e-17) !== -2e-17;
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});
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// `Math.sinh` method
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// https://tc39.es/ecma262/#sec-math.sinh
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// V8 near Chromium 38 has a problem with very small numbers
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$({ target: 'Math', stat: true, forced: FORCED }, {
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sinh: function sinh(x) {
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var n = +x;
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return abs(n) < 1 ? (expm1(n) - expm1(-n)) / 2 : (exp(n - 1) - exp(-n - 1)) * (E / 2);
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}
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});
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