What ⋰ means
It marks an omitted run of diagonal entries. A diagonal ellipsis in a matrix uses its rising slant to show that the run continues toward the upper right; nearby rows and columns give the pattern its meaning.
Specialist notation for omitted matrix entries along a diagonal.
For sentence punctuation, use the familiar ellipsis …; ⋰ carries a matrix direction.
Don't confuse it with
1Questions 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 22F0, 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 “up right diagonal ellipsis”.
Linux
Ctrl+Shift+UType 22f0, then Enter or Space.
HTML
⋰CSS
\22F0LaTeX
To type ⋰ in LaTeX, use `\adots` in math mode.
Codes and encoding1 code points
HTML decimal
⋰
HTML hex
⋰
CSS content
content: "\22F0";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%E2%8B%B0
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.