U+1EEA9 "𞺩" Arabic Mathematical Double-Struck Yeh Unicode Character
Unicode Version 17.0
𞺩
U+1EEA9 "𞺩" Arabic Mathematical Double-Struck Yeh is a specialized glyph from the Arabic Mathematical Alphabetic Symbols block, representing the Arabic letter Yeh (ي) in a double-struck or blackboard bold style, commonly used in mathematical, scientific, and scholarly contexts to denote specific variables or constants in equations and formal notations. This character is part of a larger set designed to support mathematical expressions using Arabic script, ensuring that advanced typographic needs are met for languages written in the Arabic alphabet, much like double-struck letters in Latin script serve similar purposes in disciplines such as algebra, topology, or number theory.
General Properties
| Code Point | U+1EEA9 |
| Version Added | 6.1 |
| Name | Arabic Mathematical Double-Struck Yeh |
| Block | Arabic Mathematical Alphabetic Symbols |
| General Category | Other Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Arabic Letter |
| Decomposition Type | Font |
| Decomposition Mapping | "ÙŠ" U+064A Arabic Letter Yeh |
Encodings
| HTML Decimal Encoding | 𞺩 |
| HTML Hex Encoding | 𞺩 |
| UTF-8 Encoding | 0xF0 0x9E 0xBA 0xA9 |
| UTF-16 Encoding | 0xD83B 0xDEA9 |
| UTF-32 Encoding | 0x0001EEA9 |
| C/C++/Java Escape | \ud83b\udea9 |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ÙŠ" U+064A Arabic Letter Yeh |
| NFKC Simple Casefold | "ÙŠ" U+064A Arabic Letter Yeh |
| Script | Arabic |
| Script Extensions | Arabic |
| Indic Syllabic Category | Other |
| ID Start | Yes |
| XID Start | Yes |
| ID Continue | Yes |
| XID Continue | Yes |
| Alphabetic | Yes |
| Math | Yes |
| Other Math | Yes |
| Vertical Orientation | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Alphabetic letter |
| Sentence Break | OLetter |