U+21BF "↿" Upwards Harpoon with Barb Leftwards Unicode Character
Unicode Version 17.0
↿
U+21BF "↿" Upwards Harpoon with Barb Leftwards is a typographical symbol classified under the Arrows block, used in mathematical notation and technical diagrams to indicate an upward directional vector with a leftward-facing barb on its shaft. This symbol is part of a family of harpoon arrows that denote relational or mapping concepts, often appearing in proofs or algorithms to specify a one-way upward movement while the barb clarifies the orientation along a horizontal axis. It is distinct from similar characters by its leftward hook, which can represent selective copying or a directed operation in formal logic or computer science contexts.
General Properties
| Code Point | U+21BF |
| Version Added | 1.1 |
| Name | Upwards Harpoon with Barb Leftwards |
| Unicode 1.0 Name | Up Harpoon with Barb Left |
| Block | Arrows |
| General Category | Other Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Other Neutral |
Encodings
| HTML Decimal Encoding | ↿ |
| HTML Hex Encoding | ↿ |
| UTF-8 Encoding | 0xE2 0x86 0xBF |
| UTF-16 Encoding | 0x21BF |
| UTF-32 Encoding | 0x000021BF |
| C/C++/Java Escape | \u21bf |
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 |
| Other Math | Yes |
| Vertical Orientation | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Other |
| Sentence Break | Other |