Description

Interval notation is a concise mathematical method used to describe a range of numbers. It expresses all numbers between two endpoints without listing them individually. Parentheses, such as ( and ), are used when endpoints are not included, while brackets, [ and ], indicate inclusion of the endpoints. For example, (2, 5] represents all numbers greater than 2 and up to and including 5. This notation is particularly useful in calculus, algebra, and inequalities, simplifying the representation of continuous sets of values. It provides clarity and precision when defining intervals on the real number line.