"〈 〉" is a pair of symbols known as angle brackets or chevrons. They are commonly used in various contexts, such as mathematics, computer programming, and markup languages. Angle brackets often enclose elements or expressions to indicate their significance or grouping within a larger structure. They can serve as delimiters for tags in HTML or XML, denote function parameters in programming languages, or represent mathematical inequalities. The opening bracket "〈" typically precedes the enclosed content, while the closing bracket "〉" follows it.