π is the Unicode character NEGATIVE SQUARED LATIN CAPITAL LETTER Y, code point U+1F188 (decimal 127368) in the Enclosed Alphanumeric Supplement block, added in Unicode 6.0. In HTML write 🆈, and in UTF-8 it is the 4 bytes F0 9F 86 88.
Codes
| Where | How to write it |
|---|---|
| Code point | U+1F188 |
| Decimal | 127368 |
| UTF-8 bytes | F0 9F 86 88 |
| UTF-16 (big-endian) | D83C DD88 |
| UTF-32 | 0001F188 |
| HTML decimal | 🆈 |
| HTML hex | 🆈 |
| CSS | \1F188 |
| JavaScript | \u{1F188} or \uD83C\uDD88 |
| JSON | \uD83C\uDD88 |
| Python | \U0001F188 |
| Python by name | \N{NEGATIVE SQUARED LATIN CAPITAL LETTER Y} |
| Java, C# | \uD83C\uDD88 |
| Rust, Swift | \u{1F188} |
| Go, C, C++ | \U0001F188 |
| URL (percent-encoded) | %F0%9F%86%88 |
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 LATIN CAPITAL LETTER Y |
| Code point | U+1F188 (decimal 127368) |
| 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 | 6.0 |
Nearby in Enclosed Alphanumeric Supplement
- π U+1F180 Negative Squared Latin Capital Letter Q
- π U+1F181 Negative Squared Latin Capital Letter R
- π U+1F182 Negative Squared Latin Capital Letter S
- 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+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+1F190 Square Dj
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+1F188?
- F0 9F 86 88 (hex), 4 bytes. In a URL it is %F0%9F%86%88.
- How do I write U+1F188 in JavaScript or Python?
- JavaScript: \u{1F188} or \uD83C\uDD88. Python: \U0001F188.
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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