U+2A15 "⨕" Integral Around A Point Operator Unicode Character

U+2A15 "⨕" Integral Around A Point Operator is a mathematical symbol used primarily in complex analysis and vector calculus to denote integration along a closed path that encircles a specific point, often representing a contour integral around a singularity. It features the standard integral sign with a small circle positioned at its center, indicating that the path of integration winds around a single point rather than around a larger region or multiple points. This operator is part of the Supplemental Mathematical Operators block and is distinct from the more common contour integral symbol'∮' which uses a full ring, as U+2A15 emphasizes the focused nature of the loop around a singular location.

General Properties

Code Point	U+2A15
Version Added	3.2
Name	Integral Around A Point Operator
Block	Supplemental Mathematical Operators
General Category	Math Symbol
Canonical Combining Class	Not Reordered
Bidirectional Class	Other Neutral
Mirrored	Yes

Encodings

HTML Decimal Encoding	⨕
HTML Hex Encoding	⨕
UTF-8 Encoding	0xE2 0xA8 0x95
UTF-16 Encoding	0x2A15
UTF-32 Encoding	0x00002A15
C/C++/Java Escape	\u2a15

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
NFKC Quick Check	Yes
NFKD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Alphabetic
Script	Common
Script Extensions	Common
Indic Syllabic Category	Other
Pattern Syntax	Yes
Math	Yes
Vertical Orientation	Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Other
Sentence Break	Other