π£ is the Unicode character MATHEMATICAL DOUBLE-STRUCK SMALL R, code point U+1D563 (decimal 120163) in the Mathematical Alphanumeric Symbols block, added in Unicode 3.1. In HTML write 𝕣, and in UTF-8 it is the 4 bytes F0 9D 95 A3.
Codes
| Where | How to write it |
|---|---|
| Code point | U+1D563 |
| Decimal | 120163 |
| UTF-8 bytes | F0 9D 95 A3 |
| UTF-16 (big-endian) | D835 DD63 |
| UTF-32 | 0001D563 |
| HTML decimal | 𝕣 |
| HTML hex | 𝕣 |
| HTML named | 𝕣 |
| CSS | \1D563 |
| JavaScript | \u{1D563} or \uD835\uDD63 |
| JSON | \uD835\uDD63 |
| Python | \U0001D563 |
| Python by name | \N{MATHEMATICAL DOUBLE-STRUCK SMALL R} |
| Java, C# | \uD835\uDD63 |
| Rust, Swift | \u{1D563} |
| Go, C, C++ | \U0001D563 |
| URL (percent-encoded) | %F0%9D%95%A3 |
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 DOUBLE-STRUCK SMALL R |
| Code point | U+1D563 (decimal 120163) |
| Block | Mathematical Alphanumeric Symbols (U+1D400βU+1D7FF) |
| General category | Ll: Lowercase letter |
| Script | Common |
| Bidirectional class | L: Left-to-right |
| Mirrored in right-to-left text | No |
| First in Unicode version | 3.1 |
Decomposition
MATHEMATICAL DOUBLE-STRUCK SMALL R 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+1D55B Mathematical Double-Struck Small J
- π U+1D55C Mathematical Double-Struck Small K
- π U+1D55D Mathematical Double-Struck Small L
- π U+1D55E Mathematical Double-Struck Small M
- π U+1D55F Mathematical Double-Struck Small N
- π U+1D560 Mathematical Double-Struck Small O
- π‘ U+1D561 Mathematical Double-Struck Small P
- π’ U+1D562 Mathematical Double-Struck Small Q
- π€ U+1D564 Mathematical Double-Struck Small S
- π₯ U+1D565 Mathematical Double-Struck Small T
- π¦ U+1D566 Mathematical Double-Struck Small U
- π§ U+1D567 Mathematical Double-Struck Small V
- π¨ U+1D568 Mathematical Double-Struck Small W
- π© U+1D569 Mathematical Double-Struck Small X
- πͺ U+1D56A Mathematical Double-Struck Small Y
- π« U+1D56B Mathematical Double-Struck Small Z
All 997 characters: Mathematical Alphanumeric Symbols.
Official reference
Questions people ask
- What is the HTML code for π£?
- Use the named entity 𝕣, or 𝕣 (decimal) or 𝕣 (hex).
- What is the UTF-8 encoding of U+1D563?
- F0 9D 95 A3 (hex), 4 bytes. In a URL it is %F0%9D%95%A3.
- How do I write U+1D563 in JavaScript or Python?
- JavaScript: \u{1D563} or \uD835\uDD63. Python: \U0001D563.
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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