--- /dev/null
+var $ = require('../internals/export');
+var expm1 = require('../internals/math-expm1');
+
+var nativeCosh = 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: !nativeCosh || nativeCosh(710) === Infinity }, {
+ cosh: function cosh(x) {
+ var t = expm1(abs(x) - 1) + 1;
+ return (t + 1 / (t * E * E)) * (E / 2);
+ }
+});