๐ช is the Unicode character MATHEMATICAL BOLD ITALIC CAPITAL OMICRON, code point U+1D72A (decimal 120618) in the Mathematical Alphanumeric Symbols block, added in Unicode 3.1. In HTML write 𝜪, and in UTF-8 it is the 4 bytes F0 9D 9C AA.
Codes
| Where | How to write it |
|---|---|
| Code point | U+1D72A |
| Decimal | 120618 |
| UTF-8 bytes | F0 9D 9C AA |
| UTF-16 (big-endian) | D835 DF2A |
| UTF-32 | 0001D72A |
| HTML decimal | 𝜪 |
| HTML hex | 𝜪 |
| CSS | \1D72A |
| JavaScript | \u{1D72A} or \uD835\uDF2A |
| JSON | \uD835\uDF2A |
| Python | \U0001D72A |
| Python by name | \N{MATHEMATICAL BOLD ITALIC CAPITAL OMICRON} |
| Java, C# | \uD835\uDF2A |
| Rust, Swift | \u{1D72A} |
| Go, C, C++ | \U0001D72A |
| URL (percent-encoded) | %F0%9D%9C%AA |
JavaScript and JSON strings store text as UTF-16, so this character takes two code units (a surrogate pair) and "๐ช".length is 2. Python 3 strings count code points, so its length there is 1.
Properties
| Property | Value |
|---|---|
| Name | MATHEMATICAL BOLD ITALIC CAPITAL OMICRON |
| Code point | U+1D72A (decimal 120618) |
| 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 BOLD ITALIC CAPITAL OMICRON 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
- ๐ข U+1D722 Mathematical Bold Italic Capital Eta
- ๐ฃ U+1D723 Mathematical Bold Italic Capital Theta
- ๐ค U+1D724 Mathematical Bold Italic Capital Iota
- ๐ฅ U+1D725 Mathematical Bold Italic Capital Kappa
- ๐ฆ U+1D726 Mathematical Bold Italic Capital Lamda
- ๐ง U+1D727 Mathematical Bold Italic Capital Mu
- ๐จ U+1D728 Mathematical Bold Italic Capital Nu
- ๐ฉ U+1D729 Mathematical Bold Italic Capital Xi
- ๐ซ U+1D72B Mathematical Bold Italic Capital Pi
- ๐ฌ U+1D72C Mathematical Bold Italic Capital Rho
- ๐ญ U+1D72D Mathematical Bold Italic Capital Theta Symbol
- ๐ฎ U+1D72E Mathematical Bold Italic Capital Sigma
- ๐ฏ U+1D72F Mathematical Bold Italic Capital Tau
- ๐ฐ U+1D730 Mathematical Bold Italic Capital Upsilon
- ๐ฑ U+1D731 Mathematical Bold Italic Capital Phi
- ๐ฒ U+1D732 Mathematical Bold Italic Capital Chi
All 997 characters: Mathematical Alphanumeric Symbols.
Official reference
Questions people ask
- What is the HTML code for ๐ช?
- Use 𝜪 (decimal) or 𝜪 (hex).
- What is the UTF-8 encoding of U+1D72A?
- F0 9D 9C AA (hex), 4 bytes. In a URL it is %F0%9D%9C%AA.
- How do I write U+1D72A in JavaScript or Python?
- JavaScript: \u{1D72A} or \uD835\uDF2A. Python: \U0001D72A.
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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