U+228F · Math symbol
HTML entity
⊏
LaTeX
\sqsubset
Square Image Of Symbol ⊏
⊏ is square image of, U+228F — \sqsubset in LaTeX. It was added in Unicode 1.1, and Unicode files it under Math symbol.
Codes & technical data
| Unicode | U+228F | |
|---|---|---|
| HTML hex | ⊏ | |
| HTML decimal | ⊏ | |
| CSS | \228F | |
| JavaScript | \u{228F} | |
| Python | \U0000228F | |
| Java / C# | \u228F | |
| Rust | \u{228f} | |
| Swift | \u{228F} | |
| PHP | \u{228F} | |
| URL encoded | %E2%8A%8F | |
| UTF-8 bytes | E2 8A 8F | |
| UTF-16 bytes | 228F | |
| Base64 | 4oqP | |
| Decimal | 8847 | |
| HTML entity | ⊏ | |
| LaTeX | \sqsubset | |
| Category | Math symbol (Sm) | |
| Introduced | Unicode 1.1 | |
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.
Nearby in Mathematical Operators
The operators mathematics and programming share — set theory, logic, calculus, comparison. Almost every character here has a LaTeX command, which is usually the fastest way to name the one you mean.
How to type ⊏
| Windows | Type 228F then press Alt+X |
|---|---|
| macOS | Press Ctrl+Cmd+Space, then search for “square image of” |
| Linux | Press Ctrl+Shift+U, type 228f, 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 ⊏ square image of symbol?
- On Windows, type 228F and press Alt+X. On Linux press Ctrl+Shift+U then 228f. On any system the quickest route is the copy button on this page.
- What is the code for ⊏?
- Square Image Of is U+228F, written in HTML as ⊏ and in LaTeX as \sqsubset. In UTF-8 it takes 3 bytes. The table above lists every escape format.
- What kind of character is ⊏?
- Square Image Of is filed under Math symbol in the Mathematical Operators block, and was introduced in Unicode 1.1. 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.