# Precedence

Precedence determines how operators in expressions are grouped.

Related concepts:  OperatorExpressionAssociativity

Closest Wikipedia entry:  Order of operations — In mathematics and computer programming, the order of operations (or operator precedence) is a collection of rules that reflect conventions about which procedures to perform first in order to evaluate a given mathematical expression. For example, in mathematics and most computer languages, multiplication is granted a higher precedence than addition, and it has been this way since the introduction of modern algebraic notation. Thus, the expression 1 + 2 × 3 is interpreted to have the value 1 + (2 × 3) = 7, and not (1 + 2) × 3 = 9.

Authoritative Definition

Wikipedia does not necessarily offer the best fitting definition of a concept. The exact meaning we attribute to the concept of Precedence is based on principled authoritative sources such as:

## Misconceptions about Precedence2 documented Misconceptions

No known Python misconceptions for this concept