What ⟋ means
Use \diagup in a LaTeX package that defines it. HTML, CSS, and JavaScript each have exact escapes: ⟋, \27CB , and \u{27CB}, respectively. In plain text, enter ⟋ itself.
The angle is part of the character's form: ⟋ is expected at 45, while the ordinary solidus / often leans more steeply. If a font makes them look close, their roles still differ.
Where did ⟋ come from?
It was part of mathematical typesetting before Unicode encoded it. A 2009 Unicode proposal cites LaTeX symbol charts and an example from the mathematical journal Transactions of the American Mathematical Society. That record shows ⟋ in typesetting before it became a distinct plain-text character.
Its documented falling counterpart is . In H ⟍ G ⟋ B, the pair frames G in double-coset notation—a way to group elements of G by changes allowed from H on the left and B on the right.
It reads as specialist mathematical notation; the rising direction and fixed 45 angle are part of the form.
Do not substitute /: ⟋ is a fixed 45 mathematical diagonal; / is the general-purpose solidus.
Don't confuse it with
2Combination ideas
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 or find ⟋
- Also called
- diagup
- Search it as
- diagup latex · rising diagonal symbol · mathematical slash · diagonal slash · 45 degree slash
- Shows up in
- Anything that takes text · its shape is whatever your font draws
⟋\27CB\diagup in a LaTeX package that defines the command.⟋ in HTML.\27CB in a CSS escape; the space ends the escape.\u{27CB} in a JavaScript string.Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.




