You can use the following data functions when defining a formula or a calculated key figure as an operator.
Operator 
Operator Name 
Description 

COUNT 
Counter 
COUNT(<Expression>) Returns value 1 if the expression <> identified by <Expression> results in 0, otherwise 0. 
DATE 
Casting Operator Date 
DATE The value is given as the number of days starting from 01.01.0000 and then displayed as a date. The value can be between 0 and a million which allows for a date range between 01.01.0000 and 27.11.2738. 
DELTA 
Delta 
DELTA(<Expression>) Returns value 1 if the expression identified by <Expression> results in 0, otherwise 0. Caution
The function is identical to the operator NOT and should no longer be used. 
NDIV0 
No DIV0 
NDIV(<Expression>) Results in 0 if the expression identified by <Expression> is caused by a division by 0 during calculation. Otherwise the result is the value of the expression. This is used to avoid displaying an error message or to be able to calculate further with a defined result. 
NODIM 
Value without Units or Currencies 
NODIM(<Expression>) Returns the pure number value of <Expression> and suppresses the unit and currency. 
NOERR 
No Error 
NOERR(<Expression>) Results in 0 if the expression identified by <Expression> causes a calculation error during evaluation. Otherwise the result is the value of the expression. This is used to avoid displaying an error message or to be able to calculate further with a defined result. 
SUMCT 
Norming Operation Result 
SUMCT <Operand> Returns the result of the operand on the nexthighest level (intermediate result) (see also Percentage Functions, %CT). 
SUMGT 
Norming Operation Grand Total 
SUMGT <Operand> Returns the grand total of the operand (see also Percentage Functions, %GT). 
SUMRT 
Norming Operation Query Result 
SUMRT <Operand> Returns the query result of the operand (see also Percentage Functions, %RT). In contrast to the calculation of the grand total, the dynamic filters are not included in the calculation of the query result, that is, it is always normalized to the same size, irrespective of the dynamic filter and navigation status. 
TIME 
Casting Operator Time 
TIME The TIME operator makes a key figure of type TIME of any key figure or general (part) formula. The system removes the decimal places, interprets the value as seconds, and returns the value in the form +hh:mm:ss. Example
In this way 4812 is displayed as 1:20:12. A number is seend as the number of seconds from 00:00:00 and is expressed in hours, minutes, and seconds. A key figure of type TIME with the value 0 is displayed as 00:00:00. Negative times are allowed: For a negative number the system calculates backwards from 00:00:00. The number of hours can be as high as required. The system starts from 0 again after 24 hours. 
NOERR (x): Equal to 0 for undefined calculations, otherwise x
NOERR(SQRT(1)) = 0
Result (SUMCT)
Year 
Region 
Revenue 
SUMCT 'Revenue' 

1999 
North 
30 
60 

South 
30 
60 

Result 1999 
60 
180 
2000 
North 
60 
120 

South 
60 
120 

Result 2000 
120 
180 
Overall Result 

180 
180 
Grand Total (SUMGT)
Year 
Region 
Revenue 
SUMGT 'Revenue' 

1999 
North 
30 
180 

South 
30 
180 

Result 1999 
60 
180 
2000 
North 
60 
180 

South 
60 
180 

Result 2000 
120 
180 
Overall Result 

180 
180 
Query Result (Report Total) (SUMRT)
Year 
Region 
Revenue 
SUMRT 'Revenue' 

1999 
North 
30 
180 

South 
30 
180 

Result 1999 
60 
180 
Overall Result 

60 
180 
The year 1999 is in the dynamic filter. The missing revenue 120 comes from the year 2000 (see SUMGT).
Process Value as Time (TIME)
This function is mainly intended for offset calculations. If, for example, you want to calculate 4 hours for time key figures then you can implement the operator TIME.