U+2A31 "⨱" Multiplication Sign with Underbar Unicode Character
Unicode Version 17.0
⨱
U+2A31 "⨱" Multiplication Sign with Underbar is a mathematical operator classified under the Supplemental Mathematical Operators block, designed to represent multiplication with an additional horizontal bar placed beneath the standard "×" symbol. This underbar typically indicates a variant or specialized use in algebraic notation, sometimes denoting a modified multiplication operation in advanced mathematics, such as in contexts involving ordered pairs, module theory, or specific binary operations where the underbar highlights a particular algebraic structure or distinction from ordinary multiplication. Its inclusion in Unicode ensures consistent representation across digital platforms for scholarly and technical documentation.
General Properties
| Code Point | U+2A31 |
| Version Added | 3.2 |
| Name | Multiplication Sign with Underbar |
| 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 0xA8 0xB1 |
| UTF-16 Encoding | 0x2A31 |
| UTF-32 Encoding | 0x00002A31 |
| C/C++/Java Escape | \u2a31 |
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 |