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• es.math.asinh.js

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package.modules.es.math.asinh.js Maven / Gradle / Ivy

'use strict';
var $ = require('../internals/export');

// eslint-disable-next-line es/no-math-asinh -- required for testing
var $asinh = Math.asinh;
var log = Math.log;
var sqrt = Math.sqrt;

function asinh(x) {
  var n = +x;
  return !isFinite(n) || n === 0 ? n : n < 0 ? -asinh(-n) : log(n + sqrt(n * n + 1));
}

var FORCED = !($asinh && 1 / $asinh(0) > 0);

// `Math.asinh` method
// https://tc39.es/ecma262/#sec-math.asinh
// Tor Browser bug: Math.asinh(0) -> -0
$({ target: 'Math', stat: true, forced: FORCED }, {
  asinh: asinh
});