diff --git a/src/org/nwapw/abacus/number/FunctionDatabase.java b/src/org/nwapw/abacus/number/FunctionDatabase.java
index acab4f1..4ec221d 100755
--- a/src/org/nwapw/abacus/number/FunctionDatabase.java
+++ b/src/org/nwapw/abacus/number/FunctionDatabase.java
@@ -43,7 +43,7 @@ public class FunctionDatabase {
 
             @Override
             protected NumberInterface applyInternal(NumberInterface[] params) {
-                NumberInterface product = params[1];
+                NumberInterface product = params[0];
                 for(int i = 1; i < params.length; i++){
                     product = product.multiply(params[i]);
                 }