Sha256: 366392eb5937d4120765b5906db1e428e7b8c057bdab87000c5d67b3d76f3b09
Contents?: true
Size: 289 Bytes
Versions: 29
Compression:
Stored size: 289 Bytes
Contents
'use strict';
var log = Math.log;
module.exports = function (x) {
if (isNaN(x)) return NaN;
x = Number(x);
if (x < -1) return NaN;
if (x > 1) return NaN;
if (x === -1) return -Infinity;
if (x === 1) return Infinity;
if (x === 0) return x;
return 0.5 * log((1 + x) / (1 - x));
};
Version data entries
29 entries across 19 versions & 7 rubygems