ή is the Unicode character GREEK SMALL LETTER ETA WITH TONOS, code point U+03AE (decimal 942) in the Greek and Coptic block, added in Unicode 1.1. In HTML write ή, and in UTF-8 it is the 2 bytes CE AE.
Codes
| Where | How to write it |
|---|---|
| Code point | U+03AE |
| Decimal | 942 |
| UTF-8 bytes | CE AE |
| UTF-16 (big-endian) | 03AE |
| UTF-32 | 000003AE |
| HTML decimal | ή |
| HTML hex | ή |
| CSS | \3AE |
| JavaScript | \u03AE |
| JSON | \u03AE |
| Python | \u03AE |
| Python by name | \N{GREEK SMALL LETTER ETA WITH TONOS} |
| Java, C# | \u03AE |
| Rust, Swift | \u{3AE} |
| Go, C, C++ | \u03AE |
| URL (percent-encoded) | %CE%AE |
JavaScript and JSON strings store text as UTF-16, so this character is one code unit long. Python 3 strings count code points, so its length there is 1.
Properties
| Property | Value |
|---|---|
| Name | GREEK SMALL LETTER ETA WITH TONOS |
| Code point | U+03AE (decimal 942) |
| Block | Greek and Coptic (U+0370–U+03FF) |
| General category | Ll: Lowercase letter |
| Script | Greek |
| Bidirectional class | L: Left-to-right |
| Mirrored in right-to-left text | No |
| First in Unicode version | 1.1 |
Decomposition
GREEK SMALL LETTER ETA WITH TONOS is canonically equivalent to the sequence below. Normalising text to NFD splits it into these parts; NFC joins them back into U+03AE. Search and comparison should normalise first, or the two spellings will not match.
Upper and lower case
- Ή U+0389 Greek Capital Letter Eta With Tonos — Uppercase
Nearby in Greek and Coptic
- Φ U+03A6 Greek Capital Letter Phi
- Χ U+03A7 Greek Capital Letter Chi
- Ψ U+03A8 Greek Capital Letter Psi
- Ω U+03A9 Greek Capital Letter Omega
- Ϊ U+03AA Greek Capital Letter Iota With Dialytika
- Ϋ U+03AB Greek Capital Letter Upsilon With Dialytika
- ά U+03AC Greek Small Letter Alpha With Tonos
- έ U+03AD Greek Small Letter Epsilon With Tonos
- ί U+03AF Greek Small Letter Iota With Tonos
- ΰ U+03B0 Greek Small Letter Upsilon With Dialytika And Tonos
- α U+03B1 Greek Small Letter Alpha
- β U+03B2 Greek Small Letter Beta
- γ U+03B3 Greek Small Letter Gamma
- δ U+03B4 Greek Small Letter Delta
- ε U+03B5 Greek Small Letter Epsilon
- ζ U+03B6 Greek Small Letter Zeta
All 135 characters: Greek and Coptic.
Official reference
Questions people ask
- What is the HTML code for ή?
- Use ή (decimal) or ή (hex).
- What is the UTF-8 encoding of U+03AE?
- CE AE (hex), 2 bytes. In a URL it is %CE%AE.
- How do I write U+03AE in JavaScript or Python?
- JavaScript: \u03AE. Python: \u03AE.
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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