∯
U+222F SURFACE INTEGRAL
Mathematical Operators · Math symbol
| Name | SURFACE INTEGRAL |
|---|---|
| Code point | U+222F |
| Decimal | 8751 |
| Block | Mathematical Operators |
| Category | Math symbol (Sm) |
| UTF-8 | E2 88 AF |
| UTF-16 | 222F |
| UTF-32 | 0000222F |
| HTML | ∯ ∯ |
| CSS | \222F |
| JavaScript | \u222F |
| Python | \u222f |
| URL-encoded | %E2%88%AF |
| Decomposition | <compat> 222E 222E |
Frequently asked questions
What is the character U+222F?
U+222F ∯ is officially named SURFACE INTEGRAL. It belongs to the Mathematical Operators block and the category Math symbol.
How do I type ∯?
Windows (Word, WordPad): type 222F, then press Alt+X. Linux (GTK/IBus): Ctrl+Shift+U 222f, then Space. macOS: enable the “Unicode Hex Input” keyboard, hold Option and type 222F. Or simply copy it from this page.
How do I write ∯ in HTML?
As a numeric character reference ∯ (decimal) or ∯ (hexadecimal). In UTF-8 documents you can also insert the character directly.
How is ∯ encoded in UTF-8?
In UTF-8 the character takes 3 bytes: E2 88 AF. In UTF-16: 222F.