π₯ is the Unicode character MATHEMATICAL ITALIC CAPITAL DELTA, code point U+1D6E5 (decimal 120549) in the Mathematical Alphanumeric Symbols block, added in Unicode 3.1. In HTML write 𝛥, and in UTF-8 it is the 4 bytes F0 9D 9B A5.
Codes
| Where | How to write it |
|---|---|
| Code point | U+1D6E5 |
| Decimal | 120549 |
| UTF-8 bytes | F0 9D 9B A5 |
| UTF-16 (big-endian) | D835 DEE5 |
| UTF-32 | 0001D6E5 |
| HTML decimal | 𝛥 |
| HTML hex | 𝛥 |
| CSS | \1D6E5 |
| JavaScript | \u{1D6E5} or \uD835\uDEE5 |
| JSON | \uD835\uDEE5 |
| Python | \U0001D6E5 |
| Python by name | \N{MATHEMATICAL ITALIC CAPITAL DELTA} |
| Java, C# | \uD835\uDEE5 |
| Rust, Swift | \u{1D6E5} |
| Go, C, C++ | \U0001D6E5 |
| URL (percent-encoded) | %F0%9D%9B%A5 |
JavaScript and JSON strings store text as UTF-16, so this character takes two code units (a surrogate pair) and "π₯".length is 2. Python 3 strings count code points, so its length there is 1.
Properties
| Property | Value |
|---|---|
| Name | MATHEMATICAL ITALIC CAPITAL DELTA |
| Code point | U+1D6E5 (decimal 120549) |
| Block | Mathematical Alphanumeric Symbols (U+1D400βU+1D7FF) |
| General category | Lu: Uppercase letter |
| Script | Common |
| Bidirectional class | L: Left-to-right |
| Mirrored in right-to-left text | No |
| First in Unicode version | 3.1 |
Decomposition
MATHEMATICAL ITALIC CAPITAL DELTA has a compatibility decomposition (font) 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 Alphanumeric Symbols
- π U+1D6DD Mathematical Bold Theta Symbol
- π U+1D6DE Mathematical Bold Kappa Symbol
- π U+1D6DF Mathematical Bold Phi Symbol
- π U+1D6E0 Mathematical Bold Rho Symbol
- π‘ U+1D6E1 Mathematical Bold Pi Symbol
- π’ U+1D6E2 Mathematical Italic Capital Alpha
- π£ U+1D6E3 Mathematical Italic Capital Beta
- π€ U+1D6E4 Mathematical Italic Capital Gamma
- π¦ U+1D6E6 Mathematical Italic Capital Epsilon
- π§ U+1D6E7 Mathematical Italic Capital Zeta
- π¨ U+1D6E8 Mathematical Italic Capital Eta
- π© U+1D6E9 Mathematical Italic Capital Theta
- πͺ U+1D6EA Mathematical Italic Capital Iota
- π« U+1D6EB Mathematical Italic Capital Kappa
- π¬ U+1D6EC Mathematical Italic Capital Lamda
- π U+1D6ED Mathematical Italic Capital Mu
All 997 characters: Mathematical Alphanumeric Symbols.
Official reference
Questions people ask
- What is the HTML code for π₯?
- Use 𝛥 (decimal) or 𝛥 (hex).
- What is the UTF-8 encoding of U+1D6E5?
- F0 9D 9B A5 (hex), 4 bytes. In a URL it is %F0%9D%9B%A5.
- How do I write U+1D6E5 in JavaScript or Python?
- JavaScript: \u{1D6E5} or \uD835\uDEE5. Python: \U0001D6E5.
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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