Dot Minus
Part of Math Symbols
Dot Minus has no standard Windows Alt code. Copy the character directly, or use its HTML entity or Unicode value instead.
- Alt code
- None
- HTML entity
- ∸
- Unicode
- U+2238
About this symbol
∸, dot minus, is monus, subtraction that never goes below zero: 5 ∸ 3 is 2, but 3 ∸ 5 is 0. Logicians use it to keep subtraction inside the natural numbers, and programmers know it as saturating subtraction.
Unicode facts
- Official name
- DOT MINUS
- Also called
- Saturating subtraction
- Type
- Maths symbol
- Unicode block
- Mathematical Operators
- Unicode group
- Operator
- Added in
- Unicode 1.1 (1993)
- Unicode notes
- Sometimes claimed as notation for symmetric set difference, but 2206 is preferred
Click the symbol or any value at the top of the page to copy it. See the full Math Symbols chart for related characters.