⊥
Up Tack Symbol (⊥)
Copy the Up Tack symbol ⊥ to your clipboard, and see its Unicode code point, HTML entity, LaTeX command and how to type it on any device.
What does ⊥ mean?
⊥ means “is perpendicular to” in geometry (AB ⊥ CD) and denotes falsum/bottom (contradiction) in logic. Its official Unicode name is UP TACK.
Codes and properties
| Character | ⊥ |
|---|---|
| Unicode name | UP TACK |
| Code point | U+22A5 |
| Decimal | 8869 |
| Unicode block | Mathematical Operators |
| HTML entity | ⊥ · ⊥ · ⊥ |
| CSS | \22A5 |
| JavaScript / JSON | \u22A5 |
| Python | \u22A5 or \N{UP TACK} |
| UTF-8 bytes | E2 8A A5 |
| LaTeX | \bot |
How to type ⊥
- Copy & paste: press the Copy button above, then paste ⊥ anywhere — Word, Google Docs, email, chat or code.
- Windows (Word, WordPad, Outlook): type
22A5then press Alt+X. In any app, Win+. opens the symbol panel. - Mac: switch to the Unicode Hex Input keyboard, hold Option and type
22A5; or press Ctrl+Cmd+Space and search “up tack”. - Linux (GTK/IBus): press Ctrl+Shift+U, type
22a5, then Space. - HTML:
⊥renders as ⊥. - LaTeX:
\botin math mode (amssymb package for some symbols).
Frequently asked questions
How do I type ⊥ on Windows?
In Microsoft Word type 22A5 and press Alt+X. In any app press Win+. to open the symbol panel, or copy ⊥ from this page.
What is the HTML code for ⊥?
Use ⊥ or ⊥ (hex) or ⊥ (decimal).
What is the LaTeX command for ⊥?
Use \bot in math mode.