∬
Double Integral Symbol (∬)
Copy the Double Integral 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?
The double integral ∬ integrates over a two-dimensional region, e.g. to find area or mass of a plate. Its official Unicode name is DOUBLE INTEGRAL.
Codes and properties
| Character | ∬ |
|---|---|
| Unicode name | DOUBLE INTEGRAL |
| Code point | U+222C |
| Decimal | 8748 |
| Unicode block | Mathematical Operators |
| HTML entity | ∬ · ∬ |
| CSS | \222C |
| JavaScript / JSON | \u222C |
| Python | \u222C or \N{DOUBLE INTEGRAL} |
| UTF-8 bytes | E2 88 AC |
| LaTeX | \iint |
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
222Cthen press Alt+X. In any app, Win+. opens the symbol panel. - Mac: switch to the Unicode Hex Input keyboard, hold Option and type
222C; or press Ctrl+Cmd+Space and search “double integral”. - Linux (GTK/IBus): press Ctrl+Shift+U, type
222c, then Space. - HTML:
∬renders as ∬. - LaTeX:
\iintin math mode (amssymb package for some symbols).
Frequently asked questions
How do I type ∬ on Windows?
In Microsoft Word type 222C 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 ∬ (hex) or ∬ (decimal).
What is the LaTeX command for ∬?
Use \iint in math mode.