Operator Reference
Operators specify a mathematical or logical calculation to be performed between various elements of an expression.
Arithmetic Operators
Use the following arithmetic operators to perform basic mathematical operations.
| Operator | Description |
|---|---|
| + | Addition |
| - | Subtraction |
| * | Multiplication |
| / | Division |
| % | Modulo (this is a binary operator) |
| (x, y, z) | Vector where x, y, and z are scalar values |
Comparison Operators
Use the following operators to compare two values with each other. When two values are compared using these operators, the result is 1 if the comparison is true and 0 if the comparison is false.
| Operator | Description |
|---|---|
| == | Equal to |
| != | Not equal to |
| < | Less than |
| <= | Less than or equal to |
| > | Greater than |
| >= | Greater than or equal to |
| && | Boolean AND |
| || | Boolean OR |
| ! | Boolean NOT |
Operator Precedence
When you combine several operators in a single expression, the operations are performed in the following order.
| Order | Operator | Description |
|---|---|---|
| 1 | ! | Boolean NOT |
| 2 | - | Negation (as in -1) |
| 3 | *, / and % | Multiplication, division, and modulus |
| 4 | + and - | Addition and subtraction |
| 5 | < , <=, >, and >= | Comparison |
| 6 | == and != | Equivalence |
| 7 | && | Boolean AND |
| 8 | || | Boolean OR |
When operators with the same precedence are encountered, operators are evaluated from left to right. However, when part of a formula is enclosed in parentheses, it is evaluated first.