U+22C6 "⋆" Star Operator Unicode Character
Unicode Version 17.0
⋆
U+22C6 "⋆" Star Operator is a mathematical symbol that represents a binary operation in algebra and set theory, often used to denote convolution, the star product in free probability, or other abstract multiplicative operations. It appears as a small, low-positioned star, distinct from the more common asterisk (*) or star (*) shaped glyphs, and is typically used in contexts like group theory, ring theory, and operator algebras to indicate a specific, often noncommutative or high-level operation between elements.
General Properties
| Code Point | U+22C6 |
| Version Added | 1.1 |
| Name | Star Operator |
| Block | 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 0x8B 0x86 |
| UTF-16 Encoding | 0x22C6 |
| UTF-32 Encoding | 0x000022C6 |
| C/C++/Java Escape | \u22c6 |
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 |