U+2370 "⍰" Apl Functional Symbol Quad Question Unicode Character
Unicode Version 17.0
⍰
U+2370 "⍰" Apl Functional Symbol Quad Question is a graphical symbol used within the APL programming language to represent a specific operator or function, typically denoting a general or undefined operation that prompts the user for input or indicates a placeholder within the language's symbolic notation. This character belongs to the "Miscellaneous Technical" block of Unicode and is visually designed as a square or "quad" shape containing a question mark, reflecting its role in APL as a call for user interaction or a query within algorithmic expressions. While not widely used outside of APL programming contexts, it serves as a specialized tool for writing concise, symbolic code in that environment.
General Properties
| Code Point | U+2370 |
| Version Added | 1.1 |
| Name | Apl Functional Symbol Quad Question |
| Block | Miscellaneous Technical |
| General Category | Other Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
Encodings
| HTML Decimal Encoding | ⍰ |
| HTML Hex Encoding | ⍰ |
| UTF-8 Encoding | 0xE2 0x8D 0xB0 |
| UTF-16 Encoding | 0x2370 |
| UTF-32 Encoding | 0x00002370 |
| C/C++/Java Escape | \u2370 |
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 |
| Vertical Orientation | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Other |
| Sentence Break | Other |