They are primarily used in two ways:
1. Mathematical Notation: In mathematics, braces are used to represent sets. For example, `{1, 2, 3}` represents the set containing the numbers 1, 2, and 3.
2. Computer Programming: In computer programming, braces are used to enclose blocks of code, indicating which lines of code belong to a specific function or loop.
Important Note: Braces are rarely used in standard English punctuation. They are not considered a part of common punctuation marks like commas, periods, or quotation marks.
If you are encountering braces in a text, it's likely within a mathematical or programming context.