.HEAD 0 +  1-2-3 Functions Template
.HEAD 1 +  Database statistical functions
.HEAD 2 +  Average of values in list
.HEAD 3 -  @DAVG( input, offset, criterion )
.HEAD 2 +  Count of items in list
.HEAD 3 -  @DCOUNT( input, offset, criterion )
.HEAD 2 +  Maximum of values in list
.HEAD 3 -  @DMAX( input, offset, criterion )
.HEAD 2 +  Minimum of values in list
.HEAD 3 -  @DMIN( input, offset, criterion )
.HEAD 2 +  Standard deviation of values in list
.HEAD 3 -  @DSTD( input, offset, criterion )
.HEAD 2 +  Sum of values in list
.HEAD 3 -  @DSUM( input, offset, criterion )
.HEAD 2 +  Variance of values in list
.HEAD 3 -  @DVAR( input, offset, criterion )
.HEAD 1 +  Date functions
.HEAD 2 +  Date 
.HEAD 3 -  @DATE( year, month, day )
.HEAD 2 +  Day number
.HEAD 3 -  @DAY( date )
.HEAD 2 +  Month number
.HEAD 3 -  @MONTH( date )
.HEAD 2 +  Year number
.HEAD 3 -  @YEAR( date )
.HEAD 2 +  DOS system date
.HEAD 3 -  @TODAY
.HEAD 1 +  Financial functions
.HEAD 2 +  Future value
.HEAD 3 -  @FV( pmt, int, term )
.HEAD 2 +  Internal rate of return
.HEAD 3 -  @IRR( guess, range )
.HEAD 2 +  Net present value
.HEAD 3 -  @NPV( x, range )
.HEAD 2 +  Payment
.HEAD 3 -  @PMT( prn, int, term )
.HEAD 2 +  Present value
.HEAD 3 -  @PV( pmt, int, term )
.HEAD 1 +  Logical functions
.HEAD 2 +  False, value of 0
.HEAD 3 -  @FALSE
.HEAD 2 +  True, value of 1
.HEAD 3 -  @TRUE
.HEAD 2 +  Value of 1 if Not Available
.HEAD 3 -  @ISNA( x )
.HEAD 2 +  Value of 1 if Error
.HEAD 3 -  @ISERR( x )
.HEAD 2 +  If Condition is False, then x, else y
.HEAD 3 -  @IF( condition, x, y )
.HEAD 1 +  Mathematical functions
.HEAD 2 +  Absolute value
.HEAD 3 -  @ABS( x )
.HEAD 2 +  Exponent
.HEAD 3 -  @EXP( x )
.HEAD 2 +  Integer
.HEAD 3 -  @INT( x )
.HEAD 2 +  Log base 10
.HEAD 3 -  @LOG( x )
.HEAD 2 +  Log base e
.HEAD 3 -  @LN( x )
.HEAD 2 +  Pi
.HEAD 3 -  @PI
.HEAD 2 +  Random number between 0 and 1
.HEAD 3 -  @RAND
.HEAD 2 +  Round x to d decimal places
.HEAD 3 -  @ROUND( x, d )
.HEAD 2 +  X Mod y
.HEAD 3 -  @MOD( x, y )
.HEAD 1 +  Special functions
.HEAD 2 +  Not Available
.HEAD 3 -  @NA
.HEAD 2 +  Error
.HEAD 3 -  @ERR
.HEAD 2 +  Indexed lookup
.HEAD 3 -  @CHOOSE( index, x1, x2, ... )
.HEAD 2 +  Horizontal table lookup
.HEAD 3 -  @HLOOKUP( x, range )
.HEAD 2 +  Vertical table lookup
.HEAD 3 -  @VLOOKUP( x, range )
.HEAD 1 +  Statistical functions
.HEAD 2 +  Average of values in list
.HEAD 3 -  @AVG( list )
.HEAD 2 +  Count of items in list
.HEAD 3 -  @COUNT( list )
.HEAD 2 +  Maximum of values in list
.HEAD 3 -  @MAX( list )
.HEAD 2 +  Minimum of values in list
.HEAD 3 -  @MIN( list )
.HEAD 2 +  Standard deviation of values in list
.HEAD 3 -  @STD( list )
.HEAD 2 +  Sum of values in list
.HEAD 3 -  @SUM( list )
.HEAD 2 +  Variance of values in list
.HEAD 3 -  @VAR( list )
.HEAD 1 +  Trigonometric functions
.HEAD 2 +  Cosine
.HEAD 3 -  @COS( x )
.HEAD 2 +  Sine
.HEAD 3 -  @SIN( x )
.HEAD 2 +  Tangent
.HEAD 3 -  @TAN( x )
.HEAD 2 +  Arc cosine
.HEAD 3 -  @ACOS( x )
.HEAD 2 +  Arc sine
.HEAD 3 -  @ASIN( x )
.HEAD 2 +  2-quadrant arc tangent
.HEAD 3 -  @ATAN( x )
.HEAD 2 +  4-qaudrant arc tangent
.HEAD 3 -  @ATAN2( x, y )
.HEAD 1 -  User-defined Macros
um of values in list
.HEAD 3 -  @SUM( list )
.HEAD 2 +  Variance of values in list
.HEAD 3 -  @VAR( list )
.HEAD 1 +  Trigonometric functions
.HEAD 2 +  Cosine
.HEAD 3 -  @COS( x )
.HEAD 2 +  Sine
.HEAD 3 -  @SIN( x )
.HEAD 2 +  Tangent
.HEAD 3 -  @TAN( x )
.HEAD 2 +  Arc cosine
.HEAD 3 -  @ACOS