Click the name of an operator to learn more:

:= (assignment)	Assigns the result of an expression to a temporary variable.
& (statement separator)	Separates statement in an expression.
#DODEC	Returns the date of decrement or, in the case of an Estimate with multiple decrement dates, the first date of decrement.
#BCDATE	Returns either the first or last benefit commencement date from the calculation request.
#BENFORMULA	Returns the result of a Benefit Definition.
#TODAY	The current date that the calculation is being run based on the internal clock of the computer processing the request.
#MV	Returns the missing value marker (-2147483647) for non-character fields.
#OVERRIDE	Override the expression b with the value in the database field component a if a is not missing, i.e. = MV.
#THIS	Value of the item you are working with.