Different arithmetical and logical expressions may be used in report template. 

Arithmetical operations: 

>, <, =, <=, >=, <>, != (not equal), +, -, *, /, % (mod) 

Logical operations: 

&& (and), || (or), ! (not) 

For example: 

\IF( (table1:field1>b+1) || (table1:field1=0) )\ 

............ 

\ENDIF\ 

The next built-in functions are supported by report language: 

Variables and conditions: VAR, SET, IIF, := 

String functions: STR, VAL, UPPER, LOWER, COPY, MID, SUBSTR, POS, TRIM, FORMATFLOAT 

Data tables navigation: EOF, BOF, LAST, FIRST, NEXT, PRIOR 

Numeric functions: ROUND, INT, FRAC, POWER, INTPOWER 

Date/time functions: NOW, DATE, TIME, DATETOSTR, DATETIMETOSTR, TIMETOSTR, STRTODATE, STRTODATETIME, STRTOTIME, YEAR, MONTH, DAY, SYEAR, SMONTH, SDAY, DTOS, STOD