This allows you to perform mathematical operations on variables.
There are 2 types of operations that can be used:
Comparison: Whereby the variables are compared against each other as per the expression, and if it matches then a Yes result is returned.
Calculation: Whereby the result of the expression is calculated and the stored under the following session variable [[actionName:result]], this will also return as Yes.
The below table describes all possible math expressions you can define on .Control.
+ - / *
Standard math calculations (plus, minus, divide, times)
a+b, a-b, a/b, a*b
= > < >= <=
Standard comparison operators (equals, greater than, less than)
a=b, a>b, a>=b, a<b, a<=b
Not equals to comparison operator