diff --git a/Taschenrechner.java b/Taschenrechner.java
index 33d5a80..37632dc 100644
--- a/Taschenrechner.java
+++ b/Taschenrechner.java
@@ -59,6 +59,10 @@ public class Taschenrechner {
 		return Math.PI;
 	}
 	
+	static double e() {
+		return Math.E;
+	}
+	
 	static int eingabe() {
 		Scanner scan = new Scanner(System.in);
 		int intScan = 0;