π is the Unicode character BLACK TINY DIAMOND, code point U+1F797 (decimal 128919) in the Geometric Shapes Extended block, added in Unicode 7.0. In HTML write 🞗, and in UTF-8 it is the 4 bytes F0 9F 9E 97.
Codes
| Where | How to write it |
|---|---|
| Code point | U+1F797 |
| Decimal | 128919 |
| UTF-8 bytes | F0 9F 9E 97 |
| UTF-16 (big-endian) | D83D DF97 |
| UTF-32 | 0001F797 |
| HTML decimal | 🞗 |
| HTML hex | 🞗 |
| CSS | \1F797 |
| JavaScript | \u{1F797} or \uD83D\uDF97 |
| JSON | \uD83D\uDF97 |
| Python | \U0001F797 |
| Python by name | \N{BLACK TINY DIAMOND} |
| Java, C# | \uD83D\uDF97 |
| Rust, Swift | \u{1F797} |
| Go, C, C++ | \U0001F797 |
| URL (percent-encoded) | %F0%9F%9E%97 |
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 | BLACK TINY DIAMOND |
| Code point | U+1F797 (decimal 128919) |
| Block | Geometric Shapes Extended (U+1F780βU+1F7FF) |
| General category | So: Other symbol |
| Script | Common |
| Bidirectional class | ON: Other neutral |
| Mirrored in right-to-left text | No |
| First in Unicode version | 7.0 |
Nearby in Geometric Shapes Extended
- π U+1F78F Medium White Square
- π U+1F790 Bold White Square
- π U+1F791 Heavy White Square
- π U+1F792 Very Heavy White Square
- π U+1F793 Extremely Heavy White Square
- π U+1F794 White Square Containing Black Very Small Square
- π U+1F795 White Square Containing Black Medium Square
- π U+1F796 Square Target
- π U+1F798 Black Very Small Diamond
- π U+1F799 Black Medium Small Diamond
- π U+1F79A White Diamond Containing Black Very Small Diamond
- π U+1F79B White Diamond Containing Black Medium Diamond
- π U+1F79C Diamond Target
- π U+1F79D Black Tiny Lozenge
- π U+1F79E Black Very Small Lozenge
- π U+1F79F Black Medium Small Lozenge
All 120 characters: Geometric Shapes Extended.
Official reference
Questions people ask
- What is the HTML code for π?
- Use 🞗 (decimal) or 🞗 (hex).
- What is the UTF-8 encoding of U+1F797?
- F0 9F 9E 97 (hex), 4 bytes. In a URL it is %F0%9F%9E%97.
- How do I write U+1F797 in JavaScript or Python?
- JavaScript: \u{1F797} or \uD83D\uDF97. Python: \U0001F797.
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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