U+2A46 · Math symbol
HTML entity
⩆
LaTeX
\cupovercap
Union Above Intersection Symbol ⩆
⩆ is union above intersection, U+2A46 — \cupovercap in LaTeX. It was added in Unicode 3.2, and Unicode files it under Math symbol.
Codes & technical data
| Unicode | U+2A46 | |
|---|---|---|
| HTML hex | ⩆ | |
| HTML decimal | ⩆ | |
| CSS | \2A46 | |
| JavaScript | \u{2A46} | |
| Python | \U00002A46 | |
| Java / C# | \u2A46 | |
| Rust | \u{2a46} | |
| Swift | \u{2A46} | |
| PHP | \u{2A46} | |
| URL encoded | %E2%A9%86 | |
| UTF-8 bytes | E2 A9 86 | |
| UTF-16 bytes | 2A46 | |
| Base64 | 4qmG | |
| Decimal | 10822 | |
| HTML entity | ⩆ | |
| LaTeX | \cupovercap | |
| Category | Math symbol (Sm) | |
| Introduced | Unicode 3.2 | |
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 intersection characters
Unicode names 8 characters ending in “intersection”. They differ by direction, weight or decoration rather than by meaning.
Nearby in Supplemental Mathematical Operators
A second full block of operators: n-ary forms, integrals with modifiers, and the dense family of comparison relations that differ only in the slant or stroke of the equals bar.
How to type ⩆
| Windows | Type 2A46 then press Alt+X |
|---|---|
| macOS | Press Ctrl+Cmd+Space, then search for “union above intersection” |
| Linux | Press Ctrl+Shift+U, type 2a46, 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 ⩆ union above intersection symbol?
- On Windows, type 2A46 and press Alt+X. On Linux press Ctrl+Shift+U then 2a46. On any system the quickest route is the copy button on this page.
- What is the code for ⩆?
- Union Above Intersection is U+2A46, written in HTML as ⩆ and in LaTeX as \cupovercap. In UTF-8 it takes 3 bytes. The table above lists every escape format.
- What kind of character is ⩆?
- Union Above Intersection is filed under Math symbol in the Supplemental Mathematical Operators block, and was introduced in Unicode 3.2. 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.