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-x/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); } });