U+21FB "⇻" Rightwards Arrow with Double Vertical Stroke Unicode Character
Unicode Version 17.0
⇻
U+21FB "⇻" Rightwards Arrow with Double Vertical Stroke is a symbol in the Arrows block, typically used in mathematical notation or technical diagrams to indicate a specific type of mapping, transformation, or directional flow that is distinguished by the two vertical lines intersecting the arrow's shaft. This double vertical stroke often denotes a strict or forceful execution, such as in process flowcharts, circuit schematics, or theoretical computing contexts where it may represent a map or operation with added constraints. Its design visually sets it apart from a standard rightward arrow, signaling a precise or specialized function to the reader.
General Properties
| Code Point | U+21FB |
| Version Added | 3.2 |
| Name | Rightwards Arrow with Double Vertical Stroke |
| Block | Arrows |
| General Category | Math Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Other Neutral |
Encodings
| HTML Decimal Encoding | ⇻ |
| HTML Hex Encoding | ⇻ |
| UTF-8 Encoding | 0xE2 0x87 0xBB |
| UTF-16 Encoding | 0x21FB |
| UTF-32 Encoding | 0x000021FB |
| C/C++/Java Escape | \u21fb |
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 |