π is the Unicode character NEGATIVE SQUARED IC, code point U+1F18B (decimal 127371) in the Enclosed Alphanumeric Supplement block, added in Unicode 5.2. In HTML write 🆋, and in UTF-8 it is the 4 bytes F0 9F 86 8B.
Codes
| Where | How to write it |
|---|---|
| Code point | U+1F18B |
| Decimal | 127371 |
| UTF-8 bytes | F0 9F 86 8B |
| UTF-16 (big-endian) | D83C DD8B |
| UTF-32 | 0001F18B |
| HTML decimal | 🆋 |
| HTML hex | 🆋 |
| CSS | \1F18B |
| JavaScript | \u{1F18B} or \uD83C\uDD8B |
| JSON | \uD83C\uDD8B |
| Python | \U0001F18B |
| Python by name | \N{NEGATIVE SQUARED IC} |
| Java, C# | \uD83C\uDD8B |
| Rust, Swift | \u{1F18B} |
| Go, C, C++ | \U0001F18B |
| URL (percent-encoded) | %F0%9F%86%8B |
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 | NEGATIVE SQUARED IC |
| Code point | U+1F18B (decimal 127371) |
| Block | Enclosed Alphanumeric Supplement (U+1F100βU+1F1FF) |
| General category | So: Other symbol |
| Script | Common |
| Bidirectional class | L: Left-to-right |
| Mirrored in right-to-left text | No |
| First in Unicode version | 5.2 |
Nearby in Enclosed Alphanumeric Supplement
- π U+1F183 Negative Squared Latin Capital Letter T
- π U+1F184 Negative Squared Latin Capital Letter U
- π U+1F185 Negative Squared Latin Capital Letter V
- π U+1F186 Negative Squared Latin Capital Letter W
- π U+1F187 Negative Squared Latin Capital Letter X
- π U+1F188 Negative Squared Latin Capital Letter Y
- π U+1F189 Negative Squared Latin Capital Letter Z
- π U+1F18A Crossed Negative Squared Latin Capital Letter P
- π U+1F18C Negative Squared Pa
- π U+1F18D Negative Squared Sa
- π U+1F18E AB button (blood type)
- π U+1F18F Negative Squared Wc
- π U+1F190 Square Dj
- π U+1F191 CL button
- π U+1F192 COOL button
- π U+1F193 FREE button
All 201 characters: Enclosed Alphanumeric Supplement.
Official reference
Questions people ask
- What is the HTML code for π?
- Use 🆋 (decimal) or 🆋 (hex).
- What is the UTF-8 encoding of U+1F18B?
- F0 9F 86 8B (hex), 4 bytes. In a URL it is %F0%9F%86%8B.
- How do I write U+1F18B in JavaScript or Python?
- JavaScript: \u{1F18B} or \uD83C\uDD8B. Python: \U0001F18B.
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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