added whole system from ola4doc

2017-12-14 17:06:06 +01:00
parent 9646c74be1
commit 0611418f7a
8725 changed files with 817688 additions and 2 deletions
@@ -0,0 +1,11 @@
+'use strict';
+
+var exp = Math.exp;
+
+module.exports = function (x) {
+	if (isNaN(x)) return NaN;
+	x = Number(x);
+	if (x === 0) return 1;
+	if (!isFinite(x)) return Infinity;
+	return (exp(x) + exp(-x)) / 2;
+};