Fixed but where getProd would return 1

when the ary was empty

Algorithms.lua

@@ -233,6 +233,9 @@ function getSum(ary)
 end
 
 function getProd(ary)
+	if((ary == nil) or (#ary == 0)) then
+		return 0;
+	end
 	local prod = 1;	--Holds the product of all elements. Start at 1 because num*1 = num
 	--Look through every element in the array and add the number to the running product
 	for location = 1, #ary do