π² is the Unicode character OLD HUNGARIAN CAPITAL LETTER AA, code point U+10C81 (decimal 68737) in the Old Hungarian block, added in Unicode 8.0. In HTML write 𐲁, and in UTF-8 it is the 4 bytes F0 90 B2 81.
Codes
| Where | How to write it |
|---|---|
| Code point | U+10C81 |
| Decimal | 68737 |
| UTF-8 bytes | F0 90 B2 81 |
| UTF-16 (big-endian) | D803 DC81 |
| UTF-32 | 00010C81 |
| HTML decimal | 𐲁 |
| HTML hex | 𐲁 |
| CSS | \10C81 |
| JavaScript | \u{10C81} or \uD803\uDC81 |
| JSON | \uD803\uDC81 |
| Python | \U00010C81 |
| Python by name | \N{OLD HUNGARIAN CAPITAL LETTER AA} |
| Java, C# | \uD803\uDC81 |
| Rust, Swift | \u{10C81} |
| Go, C, C++ | \U00010C81 |
| URL (percent-encoded) | %F0%90%B2%81 |
JavaScript and JSON strings store text as UTF-16, so this character takes two code units (a surrogate pair) and "π²".length is 2. Python 3 strings count code points, so its length there is 1.
Properties
| Property | Value |
|---|---|
| Name | OLD HUNGARIAN CAPITAL LETTER AA |
| Code point | U+10C81 (decimal 68737) |
| Block | Old Hungarian (U+10C80βU+10CFF) |
| General category | Lu: Uppercase letter |
| Script | Old Hungarian |
| Bidirectional class | R: Right-to-left |
| Mirrored in right-to-left text | No |
| First in Unicode version | 8.0 |
Upper and lower case
- π³ U+10CC1 Old Hungarian Small Letter Aa β Lowercase
Nearby in Old Hungarian
- π² U+10C80 Old Hungarian Capital Letter A
- π² U+10C82 Old Hungarian Capital Letter Eb
- π² U+10C83 Old Hungarian Capital Letter Amb
- π² U+10C84 Old Hungarian Capital Letter Ec
- π² U+10C85 Old Hungarian Capital Letter Enc
- π² U+10C86 Old Hungarian Capital Letter Ecs
- π² U+10C87 Old Hungarian Capital Letter Ed
- π² U+10C88 Old Hungarian Capital Letter And
- π² U+10C89 Old Hungarian Capital Letter E
All 108 characters: Old Hungarian.
Official reference
Questions people ask
- What is the HTML code for π²?
- Use 𐲁 (decimal) or 𐲁 (hex).
- What is the UTF-8 encoding of U+10C81?
- F0 90 B2 81 (hex), 4 bytes. In a URL it is %F0%90%B2%81.
- How do I write U+10C81 in JavaScript or Python?
- JavaScript: \u{10C81} or \uD803\uDC81. Python: \U00010C81.
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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