U+2231 "" Clockwise Integral Unicode Character

Unicode Version 18.0

Source: Noto Sans Math Source: Browser Default

U+2231 "" Clockwise Integral is a mathematical symbol that represents an integral taken along a closed curve or contour in a specific clockwise direction, contrasting with the more common counterclockwise integral sign. It is typically used in complex analysis and vector calculus to denote line integrals where the orientation of the path, moving in a clockwise sense, is explicitly stated or required. This character is part of the Mathematical Operators block in Unicode, allowing it to be displayed alongside other integral symbols in technical documents and digital text. Its distinct shape with a circular arrow indicates the direction of integration, providing clarity in equations where the sign of the result depends on the traversal orientation.

Encodings

HTML Decimal Encoding
∱
HTML Hex Encoding
∱
UTF-8 Encoding
0xE2 0x88 0xB1
UTF-16 Encoding
0x2231
UTF-32 Encoding
0x00002231
C/C++/Java Escape
\u2231