U+0397 "Η" Greek Capital Letter Eta Unicode Character
Unicode Version 17.0
Η
U+0397 "Η" Greek Capital Letter Eta is the seventh letter of the Greek alphabet and represents a long e sound in Ancient Greek, while in Modern Greek it is pronounced as an i sound. This character has a numerical value of 8 in the Greek numeral system and is derived from the Phoenician letter heth. In addition to its linguistic role, the capital eta is widely used as a symbol in various scientific and mathematical contexts, such as representing efficiency in physics or the delay time in telecommunications.
General Properties
| Code Point | U+0397 |
| Version Added | 1.1 |
| Name | Greek Capital Letter Eta |
| Block | Greek and Coptic |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
Encodings
| HTML Decimal Encoding | Η |
| HTML Hex Encoding | Η |
| UTF-8 Encoding | 0xCE 0x97 |
| UTF-16 Encoding | 0x0397 |
| UTF-32 Encoding | 0x00000397 |
| C/C++/Java Escape | \u0397 |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| NFKC Quick Check | Yes |
| NFKD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| East Asian Width | Ambiguous |
| Uppercase | Yes |
| Simple Lowercase Code Point | "η" U+03B7 Greek Small Letter Eta |
| Lowercase Code Point | "η" U+03B7 Greek Small Letter Eta |
| Simple Case Folding | "η" U+03B7 Greek Small Letter Eta |
| Case Folding | "η" U+03B7 Greek Small Letter Eta |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "η" U+03B7 Greek Small Letter Eta |
| NFKC Simple Casefold | "η" U+03B7 Greek Small Letter Eta |
| Script | Greek |
| Script Extensions | Greek |
| Indic Syllabic Category | Other |
| ID Start | Yes |
| XID Start | Yes |
| ID Continue | Yes |
| XID Continue | Yes |
| Alphabetic | Yes |
| Vertical Orientation | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Alphabetic letter |
| Sentence Break | Upper |