--- /dev/null
+var $ = require('../internals/export');
+
+var nativeAsinh = Math.asinh;
+var log = Math.log;
+var sqrt = Math.sqrt;
+
+function asinh(x) {
+ return !isFinite(x = +x) || x == 0 ? x : x < 0 ? -asinh(-x) : log(x + sqrt(x * x + 1));
+}
+
+// `Math.asinh` method
+// https://tc39.github.io/ecma262/#sec-math.asinh
+// Tor Browser bug: Math.asinh(0) -> -0
+$({ target: 'Math', stat: true, forced: !(nativeAsinh && 1 / nativeAsinh(0) > 0) }, {
+ asinh: asinh
+});