β
Leftwards Two Headed Arrow Symbol (β)
Copy the Leftwards Two Headed 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 leftwards two headed arrow (β) is an arrow character from the Unicode Arrows block that points to the left. A two-headed arrow conventionally denotes a surjective (onto) map in mathematics.
Codes and properties
| Character | β |
|---|---|
| Unicode name | LEFTWARDS TWO HEADED ARROW |
| Code point | U+219E |
| Decimal | 8606 |
| Unicode block | Arrows |
| HTML entity | ↞ Β· ↞ |
| CSS | \219E |
| JavaScript / JSON | \u219E |
| Python | \u219E or \N{LEFTWARDS TWO HEADED ARROW} |
| UTF-8 bytes | E2 86 9E |
| LaTeX | \twoheadleftarrow |
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
219Ethen press Alt+X. In any app, Win+. opens the symbol panel. - Mac: switch to the Unicode Hex Input keyboard, hold Option and type
219E; or press Ctrl+Cmd+Space and search βleftwards two headed arrowβ. - Linux (GTK/IBus): press Ctrl+Shift+U, type
219e, then Space. - HTML:
↞renders as β. - LaTeX:
\twoheadleftarrowin math mode (amssymb package for some symbols).
Frequently asked questions
How do I type β on Windows?
In Microsoft Word type 219E 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 ↞ (hex) or ↞ (decimal).
What is the LaTeX command for β?
Use \twoheadleftarrow in math mode.