| 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 | |
| }); |