TeXipedia

circleddash

Represents a circled minus or subtraction symbol, commonly used in mathematical notation and set operations.

Overview

Serves as a specialized mathematical operator that combines a circle with an enclosed horizontal dash, useful for denoting specific operations or relationships in advanced mathematics.

  • Often appears in abstract algebra and set theory notation
  • Used to indicate specialized binary operations or group actions
  • Particularly valuable in contexts where a distinct variant of subtraction or removal needs to be visually emphasized
  • Frequently found in academic papers and advanced mathematical texts where standard notation requires clear visual distinction

Examples

Representing a binary operation in abstract algebra that combines circle and subtraction.

a⊝b=ca \circleddash b = c 
a \circleddash b = c

Defining a custom mathematical operator using the circled dash symbol.

x1⊝x2⊝x3=0x_1 \circleddash x_2 \circleddash x_3 = 0 
x_1 \circleddash x_2 \circleddash x_3 = 0

Using circled dash in a set theory expression to denote a special difference operation.

A⊝B={x:x∈A∖B}A \circleddash B = \{x : x \in A \setminus B\} 
A \circleddash B = \{x : x \in A \setminus B\}