Math Operations

The table below lists and describes valid EngageOne™ Enrichment math operators. Math operations are processed before concatenation. EngageOne™ Enrichment evaluates these expressions from left to right according to the indicated operator precedence. If a mathematical expression contains parentheses, EngageOne™ Enrichment evaluates expressions within the parentheses first.

Table 1. EngageOne™ Enrichment Math Operators
Operator	Description	Precedence
+	Addition	3
-	Subtraction	3
*	Multiplication	2
%	Integer Division—returns the integer result when one value is divided by another Note: When using integer division of variables in a rule file, at least one space must separate the % math operator from the variables. For example, `%%var1%%%var2` is incorrect, but `%%var1 %%%var2` (with space after `%%var1`) is correct.	2
#	Remainder—returns only the remainder when one value is divided by another	2
( and )	Open and close parentheses	1

You can nest parentheses as deeply as necessary, as long as every open parenthesis has a complementary closing parenthesis. The table below shows how the results of EngageOne™ Enrichment math expressions can differ based on the evaluation order.

Table 2. Example of Evaluation Order
Expression	Result
(2 + 5) * 10 - 4 % 2	68
(2 + 5 * 10) - 4 % 2	50
2 + 5 * 10 - 4 % 2	50
2 + 5 * (10 - 4 % 2)	42
2 + (5 * 10 - 4) % 2	25
(2 + 5) * (10 - 4) % 2	21
2 + (5 * (10 - 4)) % 2	17
(2 + (5 * (10 - 4))) % 2	16