β
Downwards Double Arrow Symbol (β)
Copy the Downwards Double Arrow symbol β to your clipboard, and see its Unicode code point, HTML entity, LaTeX command and how to type it on any device.
What does β mean?
The downwards double arrow is used in some notations for strong decrease or convergence in computing semantics. Its official Unicode name is DOWNWARDS DOUBLE ARROW.
Codes and properties
| Character | β |
|---|---|
| Unicode name | DOWNWARDS DOUBLE ARROW |
| Code point | U+21D3 |
| Decimal | 8659 |
| Unicode block | Arrows |
| HTML entity | ⇓ Β· ⇓ Β· ⇓ |
| CSS | \21D3 |
| JavaScript / JSON | \u21D3 |
| Python | \u21D3 or \N{DOWNWARDS DOUBLE ARROW} |
| UTF-8 bytes | E2 87 93 |
| LaTeX | \Downarrow |
How to type β
- Copy & paste: press the Copy button above, then paste β anywhere β Word, Google Docs, email, chat or code.
- Windows (Word, WordPad, Outlook): type
21D3then press Alt+X. In any app, Win+. opens the symbol panel. - Mac: switch to the Unicode Hex Input keyboard, hold Option and type
21D3; or press Ctrl+Cmd+Space and search βdownwards double arrowβ. - Linux (GTK/IBus): press Ctrl+Shift+U, type
21d3, then Space. - HTML:
⇓renders as β. - LaTeX:
\Downarrowin math mode (amssymb package for some symbols).
Frequently asked questions
How do I type β on Windows?
In Microsoft Word type 21D3 and press Alt+X. In any app press Win+. to open the symbol panel, or copy β from this page.
What is the HTML code for β?
Use ⇓ or ⇓ (hex) or ⇓ (decimal).
What is the LaTeX command for β?
Use \Downarrow in math mode.