π is the Unicode character UPWARDS ARROW WITH SMALL EQUILATERAL ARROWHEAD, code point U+1F811 (decimal 129041) in the Supplemental Arrows-C block, added in Unicode 7.0. In HTML write 🠑, and in UTF-8 it is the 4 bytes F0 9F A0 91.
Codes
| Where | How to write it |
|---|---|
| Code point | U+1F811 |
| Decimal | 129041 |
| UTF-8 bytes | F0 9F A0 91 |
| UTF-16 (big-endian) | D83E DC11 |
| UTF-32 | 0001F811 |
| HTML decimal | 🠑 |
| HTML hex | 🠑 |
| CSS | \1F811 |
| JavaScript | \u{1F811} or \uD83E\uDC11 |
| JSON | \uD83E\uDC11 |
| Python | \U0001F811 |
| Python by name | \N{UPWARDS ARROW WITH SMALL EQUILATERAL ARROWHEAD} |
| Java, C# | \uD83E\uDC11 |
| Rust, Swift | \u{1F811} |
| Go, C, C++ | \U0001F811 |
| URL (percent-encoded) | %F0%9F%A0%91 |
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 | UPWARDS ARROW WITH SMALL EQUILATERAL ARROWHEAD |
| Code point | U+1F811 (decimal 129041) |
| Block | Supplemental Arrows-C (U+1F800βU+1F8FF) |
| 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 Supplemental Arrows-C
- π U+1F805 Upwards Arrow With Medium Triangle Arrowhead
- π U+1F806 Rightwards Arrow With Medium Triangle Arrowhead
- π U+1F807 Downwards Arrow With Medium Triangle Arrowhead
- π U+1F808 Leftwards Arrow With Large Triangle Arrowhead
- π U+1F809 Upwards Arrow With Large Triangle Arrowhead
- π U+1F80A Rightwards Arrow With Large Triangle Arrowhead
- π U+1F80B Downwards Arrow With Large Triangle Arrowhead
- π U+1F810 Leftwards Arrow With Small Equilateral Arrowhead
- π U+1F812 Rightwards Arrow With Small Equilateral Arrowhead
- π U+1F813 Downwards Arrow With Small Equilateral Arrowhead
- π U+1F814 Leftwards Arrow With Equilateral Arrowhead
- π U+1F815 Upwards Arrow With Equilateral Arrowhead
- π U+1F816 Rightwards Arrow With Equilateral Arrowhead
- π U+1F817 Downwards Arrow With Equilateral Arrowhead
- π U+1F818 Heavy Leftwards Arrow With Equilateral Arrowhead
- π U+1F819 Heavy Upwards Arrow With Equilateral Arrowhead
All 171 characters: Supplemental Arrows-C.
Official reference
Questions people ask
- What is the HTML code for π ?
- Use 🠑 (decimal) or 🠑 (hex).
- What is the UTF-8 encoding of U+1F811?
- F0 9F A0 91 (hex), 4 bytes. In a URL it is %F0%9F%A0%91.
- How do I write U+1F811 in JavaScript or Python?
- JavaScript: \u{1F811} or \uD83E\uDC11. Python: \U0001F811.
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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