U+27CF · Math symbol
Squared Logical Or Symbol ⟏
⟏ is squared logical or, U+27CF. Unicode also records it as “box max”. It was added in Unicode 6.0, and Unicode files it under Math symbol.
Also known as
- box max
What Unicode says about ⟏
morphological max product operator
morphological dilation operator
additive maximum operator
— annotation from the Unicode Standard, NamesList.txt
Codes & technical data
| Unicode | U+27CF | |
|---|---|---|
| HTML hex | ⟏ | |
| HTML decimal | ⟏ | |
| CSS | \27CF | |
| JavaScript | \u{27CF} | |
| Python | \U000027CF | |
| Java / C# | \u27CF | |
| Rust | \u{27cf} | |
| Swift | \u{27CF} | |
| PHP | \u{27CF} | |
| URL encoded | %E2%9F%8F | |
| UTF-8 bytes | E2 9F 8F | |
| UTF-16 bytes | 27CF | |
| Base64 | 4p+P | |
| Decimal | 10191 | |
| Category | Math symbol (Sm) | |
| Introduced | Unicode 6.0 | |
Will ⟏ survive being pasted?
- Normalisation. Yes. ⟏ is unchanged by NFKC, so it survives normalising systems intact.
- Legacy encodings. ⟏ is Unicode-only — it has no Latin-1 equivalent, so a system stuck on an 8-bit encoding cannot represent it.
- Size. 3 bytes in UTF-8. Character-limited fields — SMS, bios, some form validators — usually count bytes, not characters.
Other logical characters
Unicode names 14 characters ending in “logical”. They differ by direction, weight or decoration rather than by meaning.
Nearby in Miscellaneous Mathematical Symbols-A
Overflow from the main operator block — extra brackets, angle marks and logic symbols that arrived after Mathematical Operators was closed.
How to type ⟏
| Windows | Type 27CF then press Alt+X |
|---|---|
| macOS | Press Ctrl+Cmd+Space, then search for “squared logical or” |
| Linux | Press Ctrl+Shift+U, type 27cf, press Enter |
| HTML | ⟏ |
About Unicode’s Math symbol category
Unicode classifies this as a mathematical symbol, which means software that lays out formulas treats it as an operator or relation and gives it spacing accordingly, rather than setting it tight against its neighbours like a letter.
Frequently asked questions
- How do I type the ⟏ squared logical or symbol?
- On Windows, type 27CF and press Alt+X. On Linux press Ctrl+Shift+U then 27cf. On any system the quickest route is the copy button on this page.
- What is the code for ⟏?
- Squared Logical Or is U+27CF. In UTF-8 it takes 3 bytes. The table above lists every escape format.
- What kind of character is ⟏?
- Squared Logical Or is filed under Math symbol in the Miscellaneous Mathematical Symbols-A block, and was introduced in Unicode 6.0. Unicode classifies this as a mathematical symbol, which means software that lays out formulas treats it as an operator or relation and gives it spacing accordingly, rather than setting it tight against its neighbours like a letter.