# Control functions

Runoff features special control functions for uppercase
and lowercase control, underlining, boldface printing, tabbing, and
special character override.

## In this section

- [@ function](https://d3codex.com/runoff/at-function/)
- [@^ function](https://d3codex.com/runoff/at-caret-function/)
- [@\ function](https://d3codex.com/runoff/at-backslash-function/)
- [& function](https://d3codex.com/runoff/ampersand-function/)
- [&^ function](https://d3codex.com/runoff/ampersand-caret-function/)
- [&\ function](https://d3codex.com/runoff/ampersnad-backslash-function/)
- [^ function](https://d3codex.com/runoff/caret-function/)
- [^^ function](https://d3codex.com/runoff/caret-caret-function/)
- [\ function](https://d3codex.com/runoff/backslash-function/)
- [\\ function](https://d3codex.com/runoff/backslash-backslash-function/)
- [_ function](https://d3codex.com/runoff/function/)
- [< function](https://d3codex.com/runoff/less-than-function/)
- [> function](https://d3codex.com/runoff/greater-than-function/)
- [.* function](https://d3codex.com/runoff/dot-asterisk-function/)

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Source: https://d3codex.com/runoff/control-functions/ - part of the D3Codex reference.