๐ต is the Unicode character MATHEMATICAL ITALIC CAPITAL TAU, code point U+1D6F5 (decimal 120565) in the Mathematical Alphanumeric Symbols block, added in Unicode 3.1. In HTML write 𝛵, and in UTF-8 it is the 4 bytes F0 9D 9B B5.
Codes
| Where | How to write it |
|---|---|
| Code point | U+1D6F5 |
| Decimal | 120565 |
| UTF-8 bytes | F0 9D 9B B5 |
| UTF-16 (big-endian) | D835 DEF5 |
| UTF-32 | 0001D6F5 |
| HTML decimal | 𝛵 |
| HTML hex | 𝛵 |
| CSS | \1D6F5 |
| JavaScript | \u{1D6F5} or \uD835\uDEF5 |
| JSON | \uD835\uDEF5 |
| Python | \U0001D6F5 |
| Python by name | \N{MATHEMATICAL ITALIC CAPITAL TAU} |
| Java, C# | \uD835\uDEF5 |
| Rust, Swift | \u{1D6F5} |
| Go, C, C++ | \U0001D6F5 |
| URL (percent-encoded) | %F0%9D%9B%B5 |
JavaScript and JSON strings store text as UTF-16, so this character takes two code units (a surrogate pair) and "๐ต".length is 2. Python 3 strings count code points, so its length there is 1.
Properties
| Property | Value |
|---|---|
| Name | MATHEMATICAL ITALIC CAPITAL TAU |
| Code point | U+1D6F5 (decimal 120565) |
| Block | Mathematical Alphanumeric Symbols (U+1D400โU+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 TAU 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
- ๐ญ U+1D6ED Mathematical Italic Capital Mu
- ๐ฎ U+1D6EE Mathematical Italic Capital Nu
- ๐ฏ U+1D6EF Mathematical Italic Capital Xi
- ๐ฐ U+1D6F0 Mathematical Italic Capital Omicron
- ๐ฑ U+1D6F1 Mathematical Italic Capital Pi
- ๐ฒ U+1D6F2 Mathematical Italic Capital Rho
- ๐ณ U+1D6F3 Mathematical Italic Capital Theta Symbol
- ๐ด U+1D6F4 Mathematical Italic Capital Sigma
- ๐ถ U+1D6F6 Mathematical Italic Capital Upsilon
- ๐ท U+1D6F7 Mathematical Italic Capital Phi
- ๐ธ U+1D6F8 Mathematical Italic Capital Chi
- ๐น U+1D6F9 Mathematical Italic Capital Psi
- ๐บ U+1D6FA Mathematical Italic Capital Omega
- ๐ป U+1D6FB Mathematical Italic Nabla
- ๐ผ U+1D6FC Mathematical Italic Small Alpha
- ๐ฝ U+1D6FD Mathematical Italic Small Beta
All 997 characters: Mathematical Alphanumeric Symbols.
Official reference
Questions people ask
- What is the HTML code for ๐ต?
- Use 𝛵 (decimal) or 𝛵 (hex).
- What is the UTF-8 encoding of U+1D6F5?
- F0 9D 9B B5 (hex), 4 bytes. In a URL it is %F0%9D%9B%B5.
- How do I write U+1D6F5 in JavaScript or Python?
- JavaScript: \u{1D6F5} or \uD835\uDEF5. Python: \U0001D6F5.
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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