π is the Unicode character SQUARE DJ, code point U+1F190 (decimal 127376) 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 90.
Codes
| Where | How to write it |
|---|---|
| Code point | U+1F190 |
| Decimal | 127376 |
| UTF-8 bytes | F0 9F 86 90 |
| UTF-16 (big-endian) | D83C DD90 |
| UTF-32 | 0001F190 |
| HTML decimal | 🆐 |
| HTML hex | 🆐 |
| CSS | \1F190 |
| JavaScript | \u{1F190} or \uD83C\uDD90 |
| JSON | \uD83C\uDD90 |
| Python | \U0001F190 |
| Python by name | \N{SQUARE DJ} |
| Java, C# | \uD83C\uDD90 |
| Rust, Swift | \u{1F190} |
| Go, C, C++ | \U0001F190 |
| URL (percent-encoded) | %F0%9F%86%90 |
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 | SQUARE DJ |
| Code point | U+1F190 (decimal 127376) |
| 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 |
Decomposition
SQUARE DJ has a compatibility decomposition (square) 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 Enclosed Alphanumeric Supplement
- 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+1F18B Negative Squared Ic
- 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+1F191 CL button
- π U+1F192 COOL button
- π U+1F193 FREE button
- π U+1F194 ID button
- π U+1F195 NEW button
- π U+1F196 NG button
- π U+1F197 OK button
- π U+1F198 SOS 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+1F190?
- F0 9F 86 90 (hex), 4 bytes. In a URL it is %F0%9F%86%90.
- How do I write U+1F190 in JavaScript or Python?
- JavaScript: \u{1F190} or \uD83C\uDD90. Python: \U0001F190.
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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