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