Unicode Character
Reference details for U+2218 in the Mathematical Operators block. The full explorer and side panel load next, but the canonical page context is available immediately.
The interactive explorer is loading. These canonical links and summaries are available immediately.
U+2218
A small hollow circle used as an operator for function composition.
Category
Math_Symbol
Unicode label
U+2218
Canonical URL
/mathematical-operators/ring-operator
Adjacent canonical character links in the current block.
N-ARY COPRODUCT
U+2210
N-ARY SUMMATION
U+2211
MINUS SIGN
U+2212
MINUS-OR-PLUS SIGN
U+2213
DOT PLUS
U+2214
DIVISION SLASH
U+2215
SET MINUS
U+2216
ASTERISK OPERATOR
U+2217
BULLET OPERATOR
U+2219
SQUARE ROOT
U+221A
CUBE ROOT
U+221B
FOURTH ROOT
U+221C
PROPORTIONAL TO
U+221D
INFINITY
U+221E
RIGHT ANGLE
U+221F
ANGLE
U+2220