Symbol/Unicode | Big Theta/U+0398 |
---|---|

Type of symbol | Greek capital letter |

Package (requirement) | No |

Argument | No |

Latex command | `\Theta` |

Example | `\Theta` → Θ |

Big Theta is a popular symbol in mathematics. You need to use the `\Theta`

command to print this symbol in a latex document, and no package is required.

Below are some examples.

```
\documentclass{article}
\begin{document}
Prove that if $ f(n)=\Theta (g(n)),\;g(n),\;$ then $g(n)=\Theta (f(n)) $\\[6pt]
$ R(N)\;\varepsilon\;\Theta\;(f(N)) $
\end{document}
```

**Output :**