Sha256: dbc8a9328bb7315ee24c0660257a9ea1213e7af3385530be262417c4d0792187
Contents?: true
Size: 330 Bytes
Versions: 15
Compression:
Stored size: 330 Bytes
Contents
'use strict';
var exp = Math.exp;
module.exports = function (x) {
var a, b;
if (isNaN(x)) return NaN;
x = Number(x);
if (x === 0) return x;
if (x === Infinity) return 1;
if (x === -Infinity) return -1;
a = exp(x);
if (a === Infinity) return 1;
b = exp(-x);
if (b === Infinity) return -1;
return (a - b) / (a + b);
};
Version data entries
15 entries across 12 versions & 6 rubygems