# Symbols:Brackets/Angle Brackets

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## Symbol

**Angle brackets** are symbols used in a number of specific contexts.

They comprise the **left angle bracket** $\langle$ and the **right angle bracket** $\rangle$.

The $\LaTeX$ code for \(\langle\) is `\langle`

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The $\LaTeX$ code for \(\rangle\) is `\rangle`

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## Usage

**Angle brackets** are used in the following contexts:

- The specification of a point in polar coordinates: $\polar {r, \theta}$

- To denote a sequence: $\sequence {s_n}$

- To denote the set of images under an indexed family: $\family {x_i}_{i \mathop \in I}$

- To denote a generator of a group or other algebraic structure: $\gen {a, b}$

This article is complete as far as it goes, but it could do with expansion.In particular: Plenty more usages, if only I could think of themYou can help $\mathsf{Pr} \infty \mathsf{fWiki}$ by adding this information.To discuss this page in more detail, feel free to use the talk page.When this work has been completed, you may remove this instance of `{{Expand}}` from the code.If you would welcome a second opinion as to whether your work is correct, add a call to `{{Proofread}}` the page. |

The $\LaTeX$ code for \(\polar {r, \theta}\) is `\polar {r, \theta}`

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The $\LaTeX$ code for \(\sequence {s_n}\) is `\sequence {s_n}`

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The $\LaTeX$ code for \(\family {x_i}_{i \mathop \in I}\) is `\family {x_i}_{i \mathop \in I}`

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The $\LaTeX$ code for \(\gen {a, b}\) is `\gen {a, b}`

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