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