Files
Henry Whitaker ea5808047f Tweaked gitignore
gitignore removed all composer and npm files, so automated builds would fail
2020-04-12 21:24:03 +01:00

16 lines
350 B
JavaScript
Vendored

"use strict";
var log = Math.log, sqrt = Math.sqrt;
module.exports = function (value) {
if (isNaN(value)) return NaN;
value = Number(value);
if (value === 0) return value;
if (!isFinite(value)) return value;
if (value < 0) {
value = -value;
return -log(value + sqrt(value * value + 1));
}
return log(value + sqrt(value * value + 1));
};