Mod - script and chart function
                Mod() is a mathematical modulo function that returns the non-negative remainder of an integer division. The first argument is the dividend, the second argument is the divisor, Both arguments must be integer values.
Syntax:
Mod(integer_number1, integer_number2)
Return data type: integer
Limitations:
integer_number2 must be greater than 0.
Examples and results:
| Examples | Results | 
|---|---|
| 
                                 Mod( 7,2 )  | 
                            Returns 1 | 
| 
                                 Mod( 7.5,2 )  | 
                            Returns NULL | 
| 
                                 Mod( 9,3 )  | 
                            Returns 0 | 
| 
                                 Mod( -4,3 )  | 
                            Returns 2 | 
| 
                                 Mod( 4,-3 )  | 
                            Returns NULL | 
| 
                                 Mod( -4,-3 )  | 
                            Returns NULL |