U+231C "⌜" Top Left Corner Unicode Character
Unicode Version 17.0
⌜
U+231C "⌜" Top Left Corner is a graphic symbol primarily used in technical fields, such as mathematics and computer science, to denote the upper left boundary of a box-drawn area or to indicate a specific region in diagrams and logic notation. It belongs to the Miscellaneous Technical block, and its visual design resembles the corner of a rectangular frame, often paired with similar characters like U+231D (Top Right Corner) to form complete enclosures. While not commonly found in everyday text, this character serves a practical role in representing structural outlines in plain text environments where graphical interfaces are unavailable.
General Properties
| Code Point | U+231C |
| Version Added | 1.1 |
| Name | Top Left Corner |
| Block | Miscellaneous Technical |
| General Category | Other Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Other Neutral |
Encodings
| HTML Decimal Encoding | ⌜ |
| HTML Hex Encoding | ⌜ |
| UTF-8 Encoding | 0xE2 0x8C 0x9C |
| UTF-16 Encoding | 0x231C |
| UTF-32 Encoding | 0x0000231C |
| C/C++/Java Escape | \u231c |
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 | Upright |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Other |
| Sentence Break | Other |