| Symbol Name | Not Sign |
| Unicode Version | 1.1 |
| Unicode | U+00AC |
| Unicode block | |
| General category | Math Symbol (Sm) |
| CSS Code | \00AC |
| Hex Code | 0x00AC |
| HTML Code | ¬ |
| LaTeX | \neg |
| Symbol | ¬ |
| URL encode (UTF-8 percent) | %C2%AC |
| Spoken / screen reader name | Not Sign |
| UTF-8 | C2 AC |
| UTF-16 | 00AC |
| UTF-32 | 000000AC |
1\documentclass{article}2\usepackage{pifont}3\neg 4\end{document}You can type the not sign symbol on most modern devices with the help of following methods:
Alt + 172 on Windows (numeric keypad with Num Lock), or insert via Character Map.
Edit → Emoji & Symbols, search "not sign", or use Unicode Hex Input with 00AC.
Ctrl + Shift + U, type 00ac, then Enter (layout-dependent).
Paste from this page, use text replacement, or pick from the symbol keyboard.
Paste from this page or use a keyboard with math symbol support.
1span.not-sign::before { content: "\00AC"; }1<span>¬</span>Not Sign symbol's representation in different programming languages can be found in the table below:
| Language | Representation |
|---|---|
| JavaScript / TypeScript | '\u00AC' or String.fromCodePoint(0x00AC) |
| Python | '\N{NOT SIGN}' or chr(172) |
| Rust | '\u{00AC}' |
| C / C++ | UTF-8 source or wchar_t with U+00AC |
| Go | string(rune(0x00AC)) |
| Ruby | "\u00AC" |