In addition, there are hexagonal brackets "]" and angle brackets "
Parentheses generally indicate the symbols used in the commentary part of the article. This kind of comment is parenthesis sandwiched in the middle of the text. When writing an article somewhere, in order to make readers understand it more thoroughly, sometimes it is necessary to add notes, or to change the order of operations in operation, and brackets are also needed.
Extended data:
Parentheses are symbols used to annotate articles. Parentheses can only explain the previous statements and cannot introduce new content. There are four main uses of brackets, which mainly include content introduction, supplementary explanation, expression order and mathematical operation order.
1, explaining the previous content. For example, operas indicate the number of folds and the names of sentences, and Zhang Hui's novels indicate the number of times. A Chinese Dictionary: Example Sentences.
2. Supplementary explanation of relevant contents. For example, the brain capacity of Australopithecus (450-650ml) is higher than that of common fossil apes and modern apes. (Li Siguang's "People's Appearance")
3. The order of expression. For example, (1) (2) (3) (1) (2) (3) (a) (b) (c) and other forms are usually used together.
4. Mathematical usage. In mathematical formulas, parentheses are used to specify the operation order, and the contents in parentheses should be calculated first. In elementary number theory, it is used to express the greatest common divisor, for example, (11,148) = 37.