∰ is the Unicode character VOLUME INTEGRAL, code point U+2230 (decimal 8752) in the Mathematical Operators block, added in Unicode 1.1. In HTML write ∰, and in UTF-8 it is the 3 bytes E2 88 B0.
Codes
| Where | How to write it |
|---|---|
| Code point | U+2230 |
| Decimal | 8752 |
| UTF-8 bytes | E2 88 B0 |
| UTF-16 (big-endian) | 2230 |
| UTF-32 | 00002230 |
| HTML decimal | ∰ |
| HTML hex | ∰ |
| HTML named | ∰ |
| CSS | \2230 |
| JavaScript | \u2230 |
| JSON | \u2230 |
| Python | \u2230 |
| Python by name | \N{VOLUME INTEGRAL} |
| Java, C# | \u2230 |
| Rust, Swift | \u{2230} |
| Go, C, C++ | \u2230 |
| URL (percent-encoded) | %E2%88%B0 |
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 | VOLUME INTEGRAL |
| Code point | U+2230 (decimal 8752) |
| 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 |
Decomposition
VOLUME INTEGRAL has a compatibility decomposition (compat) to the sequence below. NFKC and NFKD normalisation replace it with that sequence, which can change how text looks, so use them for search, not for storage.
Nearby in Mathematical Operators
- ∨ U+2228 Logical Or
- ∩ U+2229 Intersection
- ∪ U+222A Union
- ∫ U+222B Integral
- ∬ U+222C Double Integral
- ∭ U+222D Triple Integral
- ∮ U+222E Contour Integral
- ∯ U+222F Surface Integral
- ∱ U+2231 Clockwise Integral
- ∲ U+2232 Clockwise Contour Integral
- ∳ U+2233 Anticlockwise Contour Integral
- ∴ U+2234 Therefore
- ∵ U+2235 Because
- ∶ U+2236 Ratio
- ∷ U+2237 Proportion
- ∸ U+2238 Dot Minus
All 256 characters: Mathematical Operators.
Official reference
Questions people ask
- What is the HTML code for ∰?
- Use the named entity ∰, or ∰ (decimal) or ∰ (hex).
- What is the UTF-8 encoding of U+2230?
- E2 88 B0 (hex), 3 bytes. In a URL it is %E2%88%B0.
- How do I write U+2230 in JavaScript or Python?
- JavaScript: \u2230. Python: \u2230.
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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