External Functions

External functions can be implemented by yourself or by a third party.

Following is an example of an external function:

java.lang.StrictMath.abs("Ending Inventory Units")

In this function:

If you imported the Math class by the system properties, you would have:
StrictMath.abs("Ending Inventory Units")
If the function abs is unique, you would have:
abs("Ending Inventory Units")