What is the meaning of Angle_bracket?

Any of a number of angle-shaped brackets.

  1. Either of the inequality signs < and >, when used as brackets in programming languages and markup languages.
  2. Either of a pair of symbols, ⟨ ⟩, used to enclose text in various technical contexts, and in mathematical formulas to denote an interval, a continuous parameter or an inner product.
  3. Either of a pair of symbols, 〈 〉, used in Chinese, Japanese, and Korean punctuation.
  4. Either of a pair of symbols, 〈 〉, used to enclose the name of the domain in which a concept and a term is used.
  5. an object used to connect two other objects at an angle

Either of the inequality signs < and >, when used as brackets in programming languages and markup languages.

Either of a pair of symbols, ⟨ ⟩, used to enclose text in various technical contexts, and in mathematical formulas to denote an interval, a continuous parameter or an inner product.

Either of a pair of symbols, 〈 〉, used in Chinese, Japanese, and Korean punctuation.

Either of a pair of symbols, 〈 〉, used to enclose the name of the domain in which a concept and a term is used.

an object used to connect two other objects at an angle

Source: wiktionary.org