∛ is the Unicode character CUBE ROOT, code point U+221B (decimal 8731) in the Mathematical Operators block, added in Unicode 1.1. In HTML write ∛, and in UTF-8 it is the 3 bytes E2 88 9B.
Codes
| Where | How to write it |
|---|---|
| Code point | U+221B |
| Decimal | 8731 |
| UTF-8 bytes | E2 88 9B |
| UTF-16 (big-endian) | 221B |
| UTF-32 | 0000221B |
| HTML decimal | ∛ |
| HTML hex | ∛ |
| CSS | \221B |
| JavaScript | \u221B |
| JSON | \u221B |
| Python | \u221B |
| Python by name | \N{CUBE ROOT} |
| Java, C# | \u221B |
| Rust, Swift | \u{221B} |
| Go, C, C++ | \u221B |
| URL (percent-encoded) | %E2%88%9B |
JavaScript and JSON strings store text as UTF-16, so this character is one code unit long. Python 3 strings count code points, so its length there is 1.
Properties
| Property | Value |
|---|---|
| Name | CUBE ROOT |
| Code point | U+221B (decimal 8731) |
| Block | Mathematical Operators (U+2200–U+22FF) |
| General category | Sm: Math symbol |
| Script | Common |
| Bidirectional class | ON: Other neutral |
| Mirrored in right-to-left text | Yes |
| First in Unicode version | 1.1 |
Nearby in Mathematical Operators
- ∓ U+2213 Minus-Or-Plus Sign
- ∔ U+2214 Dot Plus
- ∕ U+2215 Division Slash
- ∖ U+2216 Set Minus
- ∗ U+2217 Asterisk Operator
- ∘ U+2218 Ring Operator
- ∙ U+2219 Bullet Operator
- √ U+221A Square Root
- ∜ U+221C Fourth Root
- ∝ U+221D Proportional To
- ∞ U+221E Infinity
- ∟ U+221F Right Angle
- ∠ U+2220 Angle
- ∡ U+2221 Measured Angle
- ∢ U+2222 Spherical Angle
- ∣ U+2223 Divides
All 256 characters: Mathematical Operators.
Official reference
Questions people ask
- What is the HTML code for ∛?
- Use ∛ (decimal) or ∛ (hex).
- What is the UTF-8 encoding of U+221B?
- E2 88 9B (hex), 3 bytes. In a URL it is %E2%88%9B.
- How do I write U+221B in JavaScript or Python?
- JavaScript: \u221B. Python: \u221B.
Source
Unicode Character Database 18.0.0 (Unicode License v3); HTML entity names from the WHATWG HTML Standard (CC BY 4.0). The encodings above are computed from the code point and checked against Python's encoders. How the character looks depends on your fonts.
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