⊖

Math Operator 147

Unicode
U+2296
Category
Math
HTML Entity
⊖
CSS
\2296
The ⊖ (circled minus) symbol is a mathematical operator featuring a standard minus sign enclosed within a circle. In mathematics, it is frequently used to represent specialized algebraic operations, the symmetric difference of sets, or morphological erosion in image processing. Beyond complex math, digital designers often use it as a stylized "remove," "zoom out," or "subtract" icon in user interfaces.

How to Type

Windows
Alt+8854 or type 2296, then press Alt+X
macOS
Control+Command+Space, then search "circled minus"
Linux
Ctrl+Shift+U, type 2296, then press Enter
HTML
⊖ or ⊖

In Programming

In LaTeX formatting, the \ominus command is used to render this symbol for algebraic equations. Programmers working with computer vision or set theory also use it to denote morphological erosion or custom subtraction-like operators.

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Tags

UI design symbol circled minus image processing mathematics minus in circle morphological erosion operator remove icon set theory subtract icon subtraction symmetric difference zoom out button

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