⊍

Math Operator 138

Unicode
U+228D
Category
Math
HTML Entity
⊍
CSS
\228D
The ⊍ (Multiset Multiplication) symbol, often described visually as a "cup with a dot," is a mathematical operator used in advanced set theory. It represents an operation that scales or multiplies the frequency of elements within a multiset—a mathematical collection that allows for repeated values. While rarely seen outside of formal mathematical logic and computer science, it provides a precise shorthand for defining complex relationships between non-standard sets.

How to Type

Windows
Alt+8845
macOS
Control+Command+Space then search "multiset multiplication"
Linux
Ctrl+Shift+U then 228D
HTML
⊍

In Programming

In computational mathematics and LaTeX document formatting (often typed using commands like `\cupdot` or `\cuwed`), this symbol is used to document algorithms handling multiset data structures.

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Tags

LaTeX \biguplus variant U+228D advanced set theory bag bag product cup with dot frequency scaling mathematics multiset multiplication multiset multiplication copy paste multiset operator product set theory unicode math symbol

Related Symbols

± Plus Minus Sign × Multiplication Sign ÷ Division Sign ≠ Not Equal To ≈ Approximately Equal To ∞ Infinity √ Square Root ∑ Summation ∫ Integral π Pi ≤ Less Than or Equal To ≥ Greater Than or Equal To