# Operators

## Arithmetic operators

`+`

Addition operator (also concatenates strings)

`-`

Subtraction operator

`* `

Multiplication operator

`/`

Division operator

`( )` Parentheses (used to group operands in expressions)

`=`

Assignment operator

## ?
(Question Mark in Formulas)

#### Definition

In a formula, specifies that the parameter value to be applied is the first
parameter value found when scanning the specification tree from the formula to
the top of the specification tree.

## (Relative Path in Formulas)

#### Definition

Defines where the value of a parameter used as an argument in a formula is
to be read. A single.. exits the statement block where the formula is
defined. The parameter value applied in the formula is then the one defined in
the parent feature scope.