What ⦻ means
Unicode links them, but they are distinct characters.
Its chart points from ⦻ to ⊗, the circled-times sign; this cross-reference does not define one universal operation.
Don't confuse it with
1Worth knowing
- A 2000 proposal to encode more mathematical symbols listed ⦻ in its circle-symbol group.
Questions people ask
1Why 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 29BB, 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 “circle with superimposed x”.
Linux
Ctrl+Shift+UType 29bb, then Enter or Space.
HTML
⦻CSS
\29BBMathML
In MathML, markup for formulas, the named character reference `⦻` represents this sign when the MathML entities are enabled.
LaTeX
In LaTeX math mode, use `\olcross` where defined. A 2023 font comparison found some math fonts lacked the glyph, so rendering depends on the font.
Codes and encoding1 code points
HTML decimal
⦻
HTML hex
⦻
CSS content
content: "\29BB";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%E2%A6%BB
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.