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 | |
}); |