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