# Using operators in formulas

An operator is a symbol or instruction that manipulates expressions in a formula. For example, the plus (+) operator tells FileMaker Pro to add one expression to another. There are four types of operators:

**Note **For information on using variables in formulas, see Using variables.

## Order of evaluation

Operators are evaluated in the order they are listed below.

- /* */, //
- " ", \, ¶, ${ }
- (, )
- NOT
- ^
- *, /
- +, -
- &
- =, ≠, >, <, ≥, ≤
- AND
- OR, XOR