U+29DF "⧟" Double-Ended Multimap Unicode Character
Unicode Version 17.0
⧟
U+29DF "⧟" Double-Ended Multimap is a typographic symbol that represents a mathematical construct used in computer science and relational algebra, signifying a bidirectional mapping where each element in one set can be associated with multiple elements in another set, and vice versa. This character is encoded in the Miscellaneous Mathematical Symbols-B block and is visually depicted as a plus sign with two arrows pointing outward in opposite directions, one from each end. Its purpose is to provide a clear, compact notation for discussing and writing about functions or relations that are not one to one but allow for multiple correspondences on both sides.
General Properties
| Code Point | U+29DF |
| Version Added | 3.2 |
| Name | Double-Ended Multimap |
| Block | Miscellaneous Mathematical Symbols-B |
| General Category | Math Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Other Neutral |
Encodings
| HTML Decimal Encoding | ⧟ |
| HTML Hex Encoding | ⧟ |
| UTF-8 Encoding | 0xE2 0xA7 0x9F |
| UTF-16 Encoding | 0x29DF |
| UTF-32 Encoding | 0x000029DF |
| C/C++/Java Escape | \u29df |
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 |
| Script | Common |
| Script Extensions | Common |
| Indic Syllabic Category | Other |
| Pattern Syntax | Yes |
| Math | Yes |
| Vertical Orientation | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Other |
| Sentence Break | Other |