1 var $ = require('../internals/export');
2 var expm1 = require('../internals/math-expm1');
4 // eslint-disable-next-line es/no-math-cosh -- required for testing
10 // https://tc39.es/ecma262/#sec-math.cosh
11 $({ target: 'Math', stat: true, forced: !$cosh || $cosh(710) === Infinity }, {
12 cosh: function cosh(x) {
13 var t = expm1(abs(x) - 1) + 1;
14 return (t + 1 / (t * E * E)) * (E / 2);