Arithmetic operators

sum

Returns the sum of all parameters, including the input parameter if it is used.

sum( $a, $b, $c ) equal $a + $b + $c

and

$a|sum( $b, $c, $d ) equal $a + $b + $c + $d

sub

Subtracts all extra parameters from the first parameter, e.g.

sub( $a, $b, $c ) equal $a - $b - $c

If an input parameter is supplied that will be considered the first element and the parameters the subtractors, e.g.

$a|sub( $b, $c, $d ) equal $a - $b - $c - $d

inc

Increases either the input value or the first parameter with one. e.g.

{set i=$i|inc}

and

{set i=inc( $i )}

dec

Decreases either the input value or the first parameter with one
e.g.

{set i=$i|dec}

and

{set i=dec( $i )}

div

Divides all extra parameters with the first parameter, e.g.

div( $a, $b, $c ) equal $a / $b / $c

If an input parameter is supplied that will be considered the dividend and the parameters will the divisors, e.g.

$a|div( $b, $c, $d ) equal $a / $b / $c / $d

mod

Returns the modulo of the first input parameter divided by the second. E.g.

mod( 5, 3 )

returns 2.

mul

Multiplies all parameters and returns the result, if an input parameter is supplied it will be included in the multiplication, e.h.

mul( $a,  $b, $c ) equal $a * $b * $c

and

$a|mul( $b, $c ) equal $a * $b * $c

max

Returns the largest value of all parameters, e.g.

max( 2, 3, 1 )

returns 3

min

Returns the smallest value of all parameters, e.g.

min( 2, 3, 1 )

returns 1

abs

Returns a positive value of either the input value or the first parameter. e.g.

{abs(-1)}

,

{-1|abs}

returns 1 and

{abs(200)}

returns 200.

ceil

Returns the next highest integer value by rounding up input value if necessary, e.g.

{ceil(1.2)}

returns 2

floor

Returns the next lowest integer value by rounding down input value if necessary, e.g.

{floor(1.2)}

returns 1

round

Returns the rounded value of input value, e.g.

{round(1.2)}

returns 1, and

{round(1.6)}

returns 2

count

Returns the count of the input value.
How counts are interpreted:
- If the data is an array the array count is used
- If the data is an object the object attribute count is used
- If the data is a string the string length is used
- If the data is a numeric the value is used
- If the data is a boolean false is 0 and true is 1
- For all other data 0 is used
e.g.

{array( 1, 2, 5 )|count}

returns 3