∛
U+221B CUBE ROOT
Mathematical Operators · Math symbol
| Name | CUBE ROOT |
|---|---|
| Code point | U+221B |
| Decimal | 8731 |
| Block | Mathematical Operators |
| Category | Math symbol (Sm) |
| UTF-8 | E2 88 9B |
| UTF-16 | 221B |
| UTF-32 | 0000221B |
| HTML | ∛ ∛ |
| CSS | \221B |
| JavaScript | \u221B |
| Python | \u221b |
| URL-encoded | %E2%88%9B |
Frequently asked questions
What is the character U+221B?
U+221B ∛ is officially named CUBE ROOT. It belongs to the Mathematical Operators block and the category Math symbol.
How do I type ∛?
Windows (Word, WordPad): type 221B, then press Alt+X. Linux (GTK/IBus): Ctrl+Shift+U 221b, then Space. macOS: enable the “Unicode Hex Input” keyboard, hold Option and type 221B. 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 9B. In UTF-16: 221B.