π is the Unicode character SQUARED KATAKANA DE, code point U+1F213 (decimal 127507) in the Enclosed Ideographic Supplement block, added in Unicode 5.2. In HTML write 🈓, and in UTF-8 it is the 4 bytes F0 9F 88 93.
Codes
| Where | How to write it |
|---|---|
| Code point | U+1F213 |
| Decimal | 127507 |
| UTF-8 bytes | F0 9F 88 93 |
| UTF-16 (big-endian) | D83C DE13 |
| UTF-32 | 0001F213 |
| HTML decimal | 🈓 |
| HTML hex | 🈓 |
| CSS | \1F213 |
| JavaScript | \u{1F213} or \uD83C\uDE13 |
| JSON | \uD83C\uDE13 |
| Python | \U0001F213 |
| Python by name | \N{SQUARED KATAKANA DE} |
| Java, C# | \uD83C\uDE13 |
| Rust, Swift | \u{1F213} |
| Go, C, C++ | \U0001F213 |
| URL (percent-encoded) | %F0%9F%88%93 |
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 | SQUARED KATAKANA DE |
| Code point | U+1F213 (decimal 127507) |
| Block | Enclosed Ideographic Supplement (U+1F200βU+1F2FF) |
| 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
SQUARED KATAKANA DE 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 Ideographic Supplement
- π U+1F200 Square Hiragana Hoka
- π U+1F201 Japanese βhereβ button
- π U+1F202 Japanese βservice chargeβ button
- π U+1F250 Japanese βbargainβ button
- π U+1F251 Japanese βacceptableβ button
- π U+1F260 Rounded Symbol For Fu
- π‘ U+1F261 Rounded Symbol For Lu
- π’ U+1F262 Rounded Symbol For Shou
- π£ U+1F263 Rounded Symbol For Xi
- π€ U+1F264 Rounded Symbol For Shuangxi
- π₯ U+1F265 Rounded Symbol For Cai
All 12 characters: Enclosed Ideographic 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+1F213?
- F0 9F 88 93 (hex), 4 bytes. In a URL it is %F0%9F%88%93.
- How do I write U+1F213 in JavaScript or Python?
- JavaScript: \u{1F213} or \uD83C\uDE13. Python: \U0001F213.
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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