Arithmetic operators are symbols used in programming to perform mathematical calculations such as addition, subtraction, multiplication, division, and modulus. They are fundamental in manipulating numerical data.
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The basic arithmetic operators in Python are + (addition), - (subtraction), * (multiplication), / (division), and % (modulus).
The division operator / always returns a float, even if both operands are integers.
Python also supports floor division using // which returns the largest integer less than or equal to the division result.
Exponentiation is performed using the ** operator.
Operator precedence determines the order in which operations are evaluated; for example, multiplication and division have higher precedence than addition and subtraction.
Review Questions
What is the difference between / and // operators in Python?
How do you perform exponentiation in Python?
Which arithmetic operator would you use to find the remainder of a division?
Related terms
Modulo Operator: An arithmetic operator (%) that returns the remainder of a division operation.
Operator Precedence: Rules that determine the order in which different arithmetic operations are carried out.
Floor Division: $$\text{An operation performed using } // \text{ that returns the largest integer less than or equal to the result of a division.}$$