U+2904 "⤄" Left Right Double Arrow with Vertical Stroke Unicode Character
Unicode Version 17.0
⤄
U+2904 "⤄" Left Right Double Arrow with Vertical Stroke is a typographic symbol that combines a standard double-headed arrow, indicating bidirectional movement or equivalence, with a vertical stroke running through the center of both arrowheads and the shaft. This vertical stroke typically serves to modify the arrow's meaning, often representing a logical or mathematical concept such as "reversible" or "complementary" in formal notation, or it may denote a specific relation in computer science and set theory that differs from a plain double arrow. It belongs to the Supplemental Arrows-B block in Unicode, which provides a range of specialized arrow symbols for technical documentation, mathematics, and logic.
General Properties
| Code Point | U+2904 |
| Version Added | 3.2 |
| Name | Left Right Double Arrow with Vertical Stroke |
| Block | Supplemental Arrows-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 0xA4 0x84 |
| UTF-16 Encoding | 0x2904 |
| UTF-32 Encoding | 0x00002904 |
| C/C++/Java Escape | \u2904 |
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 |