You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
|
"use strict"; |
|
|
|
var exp = Math.exp; |
|
|
|
module.exports = function (value) { |
|
if (isNaN(value)) return NaN; |
|
value = Number(value); |
|
if (value === 0) return 1; |
|
if (!isFinite(value)) return Infinity; |
|
return (exp(value) + exp(-value)) / 2; |
|
};
|
|
|
