π is the Unicode character CUNEIFORM SIGN RAB, code point U+12290 (decimal 74384) in the Cuneiform block, added in Unicode 5.0. In HTML write 𒊐, and in UTF-8 it is the 4 bytes F0 92 8A 90.
Codes
| Where | How to write it |
|---|---|
| Code point | U+12290 |
| Decimal | 74384 |
| UTF-8 bytes | F0 92 8A 90 |
| UTF-16 (big-endian) | D808 DE90 |
| UTF-32 | 00012290 |
| HTML decimal | 𒊐 |
| HTML hex | 𒊐 |
| CSS | \12290 |
| JavaScript | \u{12290} or \uD808\uDE90 |
| JSON | \uD808\uDE90 |
| Python | \U00012290 |
| Python by name | \N{CUNEIFORM SIGN RAB} |
| Java, C# | \uD808\uDE90 |
| Rust, Swift | \u{12290} |
| Go, C, C++ | \U00012290 |
| URL (percent-encoded) | %F0%92%8A%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 | CUNEIFORM SIGN RAB |
| Code point | U+12290 (decimal 74384) |
| Block | Cuneiform (U+12000βU+123FF) |
| General category | Lo: Other letter |
| Script | Cuneiform |
| Bidirectional class | L: Left-to-right |
| Mirrored in right-to-left text | No |
| First in Unicode version | 5.0 |
Nearby in Cuneiform
- π U+12288 Cuneiform Sign Pi Times U2
- π U+12289 Cuneiform Sign Pi Crossing Pi
- π U+1228A Cuneiform Sign Pirig
- π U+1228B Cuneiform Sign Pirig Times Kal
- π U+1228C Cuneiform Sign Pirig Times Ud
- π U+1228D Cuneiform Sign Pirig Times Za
- π U+1228E Cuneiform Sign Pirig Opposing Pirig
- π U+1228F Cuneiform Sign Ra
- π U+12291 Cuneiform Sign Ri
- π U+12292 Cuneiform Sign Ru
- π U+12293 Cuneiform Sign Sa
- π U+12294 Cuneiform Sign Sag Nutillu
- π U+12295 Cuneiform Sign Sag
- π U+12296 Cuneiform Sign Sag Times A
- π U+12297 Cuneiform Sign Sag Times Du
- π U+12298 Cuneiform Sign Sag Times Dub
All 922 characters: Cuneiform.
Official reference
Questions people ask
- What is the HTML code for π?
- Use 𒊐 (decimal) or 𒊐 (hex).
- What is the UTF-8 encoding of U+12290?
- F0 92 8A 90 (hex), 4 bytes. In a URL it is %F0%92%8A%90.
- How do I write U+12290 in JavaScript or Python?
- JavaScript: \u{12290} or \uD808\uDE90. Python: \U00012290.
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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