Contour Integral ∮

U+222E
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Symbol Meaning

Contour Integral. Mathematical Operators.

The symbol “Contour Integral” is included in the “Integrals” subblock of the “Mathematical Operators” block and was approved as part of Unicode version 1.1 in 1993.

Unicode Name Contour Integral
Unicode Number
HTML Code
CSS Code
Entity ∮
Unicode Block Mathematical Operators
Unicode Subblock Integrals
Unicode Version 1.1 (1993)
Version 1.1
Block Mathematical Operators
Type of paired mirror bracket (bidi) None
Composition Exclusion No
Case change 222E
Simple case change 222E
Math +
Grapheme_Base +
age 1.1
scripts Common
Encoding hex dec (bytes) dec binary
UTF-8 E2 88 AE 226 136 174 14846126 11100010 10001000 10101110
UTF-16BE 22 2E 34 46 8750 00100010 00101110
UTF-16LE 2E 22 46 34 11810 00101110 00100010
UTF-32BE 00 00 22 2E 0 0 34 46 8750 00000000 00000000 00100010 00101110
UTF-32LE 2E 22 00 00 46 34 0 0 773980160 00101110 00100010 00000000 00000000

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