π is the Unicode character ALCHEMICAL SYMBOL FOR GUM, code point U+1F749 (decimal 128841) in the Alchemical Symbols block, added in Unicode 6.0. In HTML write 🝉, and in UTF-8 it is the 4 bytes F0 9F 9D 89.
Codes
| Where | How to write it |
|---|---|
| Code point | U+1F749 |
| Decimal | 128841 |
| UTF-8 bytes | F0 9F 9D 89 |
| UTF-16 (big-endian) | D83D DF49 |
| UTF-32 | 0001F749 |
| HTML decimal | 🝉 |
| HTML hex | 🝉 |
| CSS | \1F749 |
| JavaScript | \u{1F749} or \uD83D\uDF49 |
| JSON | \uD83D\uDF49 |
| Python | \U0001F749 |
| Python by name | \N{ALCHEMICAL SYMBOL FOR GUM} |
| Java, C# | \uD83D\uDF49 |
| Rust, Swift | \u{1F749} |
| Go, C, C++ | \U0001F749 |
| URL (percent-encoded) | %F0%9F%9D%89 |
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 | ALCHEMICAL SYMBOL FOR GUM |
| Code point | U+1F749 (decimal 128841) |
| Block | Alchemical Symbols (U+1F700βU+1F77F) |
| General category | So: Other symbol |
| Script | Common |
| Bidirectional class | ON: Other neutral |
| Mirrored in right-to-left text | No |
| First in Unicode version | 6.0 |
Nearby in Alchemical Symbols
- π U+1F741 Alchemical Symbol For Quick Lime
- π U+1F742 Alchemical Symbol For Borax
- π U+1F743 Alchemical Symbol For Borax-2
- π U+1F744 Alchemical Symbol For Borax-3
- π U+1F745 Alchemical Symbol For Alum
- π U+1F746 Alchemical Symbol For Oil
- π U+1F747 Alchemical Symbol For Spirit
- π U+1F748 Alchemical Symbol For Tincture
- π U+1F74A Alchemical Symbol For Wax
- π U+1F74B Alchemical Symbol For Powder
- π U+1F74C Alchemical Symbol For Calx
- π U+1F74D Alchemical Symbol For Tutty
- π U+1F74E Alchemical Symbol For Caput Mortuum
- π U+1F74F Alchemical Symbol For Scepter Of Jove
- π U+1F750 Alchemical Symbol For Caduceus
- π U+1F751 Alchemical Symbol For Trident
All 128 characters: Alchemical Symbols.
Official reference
Questions people ask
- What is the HTML code for π?
- Use 🝉 (decimal) or 🝉 (hex).
- What is the UTF-8 encoding of U+1F749?
- F0 9F 9D 89 (hex), 4 bytes. In a URL it is %F0%9F%9D%89.
- How do I write U+1F749 in JavaScript or Python?
- JavaScript: \u{1F749} or \uD83D\uDF49. Python: \U0001F749.
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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