Using Constants

The following constants are specified or recognized by when programming rules and checks. As a result, they can be used anywhere in a relation in place of the actual values.


  • false - one of the two values that a parameter of type Boolean can have
  • true - one of the two values that a parameter of type Boolean can have
  • PI - 3.14159265358979323846 - The ratio of the circumference of a circle to its diameter.
  • E - The base of natural logarithm - The constant e is approximately 2.718282.