U+2A40 "⩀" Intersection with Dot Unicode Character
Unicode Version 17.0
⩀
U+2A40 "⩀" Intersection with Dot is a mathematical symbol in the Supplemental Mathematical Operators block, used primarily in advanced set theory and logic notation to represent an intersection operation that includes a specific point or element, often denoting the intersection of sets with a distinguished or marked member. It visually consists of the standard intersection symbol, a rounded capital U shape, with a single dot placed centrally inside the curve. This character is intended for precise formal notation in academic texts and differs from ordinary intersection symbols by adding a functional or semantic mark.
General Properties
| Code Point | U+2A40 |
| Version Added | 3.2 |
| Name | Intersection with Dot |
| Block | Supplemental Mathematical Operators |
| General Category | Math Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Other Neutral |
Encodings
| HTML Decimal Encoding | ⩀ |
| HTML Hex Encoding | ⩀ |
| UTF-8 Encoding | 0xE2 0xA9 0x80 |
| UTF-16 Encoding | 0x2A40 |
| UTF-32 Encoding | 0x00002A40 |
| C/C++/Java Escape | \u2a40 |
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 |