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⨐

circulation function

Circulation Function

⨐ is a specialized integral operator named “circulation function,” but its name alone does not specify a formula or quantity; the surrounding mathematical text must define its role. A 2003 draft of an ISO/IEC standard for math and science markup lists it under the entity name <code>cirfnint</code>, alongside other integral signs.

Text symbol
Search it as
circulation function symbol · circulation function copy paste
Shows up in
Anything that takes text · its shape is whatever your font draws

What ⨐ means

⨐ is the circulation function. Unicode classifies it as a mathematical symbol and files it in the Supplemental Mathematical Operators block; this site shelves it under Maths.

Its appearance depends on the font and text styling.

How it is encoded

⨐ is a single code point, U+2A10. In HTML that is ⨐, and in CSS \2A10.

Questions people ask

1

Why does ⨐ show as a box on some devices?

Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.

How to type ⨐

Windows (Word)
Alt+XType 2A10, then Alt+X to get ⨐.
Windows
Win+Rrun charmap for the full table, or use the emoji picker's Ω symbols tab (Win + .).
macOS
Control+Command+SpaceOpen the character viewer and search “circulation function”.
Linux
Ctrl+Shift+UType 2a10, then Enter or Space.
HTML
&#x2A10;
CSS
\2A10
Codes and encoding1 code points
HTML decimal
&#10768;
HTML hex
&#x2A10;
CSS content
content: "\2A10";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%E2%A8%90
1
On screen
1
Code points
1
JS .length
3
UTF-8 bytes

A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.

Families this belongs to

1

Maths & numbers1,835 symbols

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