⊛
Math Operator 152
- Unicode
- U+229B
- Category
- Math
- HTML Entity
- ⊛
- CSS
- \229B
The ⊛ (Circled Asterisk Operator) symbol is a mathematical character primarily used to denote specialized binary operations, such as custom forms of multiplication or convolution in abstract algebra. Visually consisting of a standard asterisk enclosed in a circle, it helps mathematicians distinguish unique operators from standard arithmetic symbols. Outside of strict mathematical contexts, it occasionally appears in technical documentation to indicate a special footnote or a distinct bullet point.
How to Type
- Windows
- Type 229B followed by Alt+X (in Word), or use Win+. and search 'circled asterisk'
- macOS
- Control+Command+Space, then search 'circled asterisk'
- Linux
- Ctrl+Shift+U then type 229b and press Enter
- HTML
- ⊛ or ⊛
In Programming
In LaTeX typesetting, this symbol is generated using the \circledast command to represent custom binary operations in complex mathematical formulas.
Tags
abstract algebra
annotation symbol
asterisk in circle
circled asterisk
circled star
convolution
convolution symbol
custom operator
footnote marker
mathematics
operator
special bullet
star
star in circle