Apply Math (Interval Data)
This rule is used to perform calculations on interval data and it stores the results in the usage transaction's service quantities. A variety of options are available on this rule that include defining the calculation type, variables to use, as well as the equation to use (math functions and expressions).
Note: 
Additional detail on the logic of this rule can be found in the Detailed Description of the D2-APPMATHIN Algorithm Type.
For help with the meaning of specific configuration fields, refer to the embedded help on the screen when adding or editing the rule.
Business Object
D2-ApplyMathInt
Example Scenarios
Below are some example scenarios that can be achieved based on configuration of this rule.
Scenario 1: Get the total KWH for the period
Calculation Type = Single Variable
Variable Name = V1, where the following is configured:
• Variable Type = Channel Accumulation
• UOM = KWH
• Set Function = Sum
Scenario 2: Get the higher value between the total KWH or total KVARH
Calculation Type = Math Function
Math Function = Max
Variable Name = V1, where the following is configured:
• Variable Type = Channel Accumulation
• UOM = KWH
• Set Function = Sum
Variable Name = V2, where the following is configured:
• Variable Type = Channel Accumulation
• UOM = KVARH
• Set Function = Sum
Scenario 3: Total KWH multiplied with a factor value
Calculation Type = Mathematical Expression
Mathematical Expression = V1 * V2
Variable Name = V1, where the following is configured:
• Variable Type = Channel Accumulation
• UOM = KWH
• Set Function = Sum
Variable Name = V2, where the following is configured:
• Variable Type = Factor
• Factor = factor code that holds the multiplier