U+2A78 · Math symbol
HTML entity
⩸
LaTeX
\equivDD
Equivalent With Four Dots Above Symbol ⩸
⩸ is equivalent with four dots above, U+2A78 — \equivDD in LaTeX. It was added in Unicode 3.2, and Unicode files it under Math symbol.
Codes & technical data
| Unicode | U+2A78 | |
|---|---|---|
| HTML hex | ⩸ | |
| HTML decimal | ⩸ | |
| CSS | \2A78 | |
| JavaScript | \u{2A78} | |
| Python | \U00002A78 | |
| Java / C# | \u2A78 | |
| Rust | \u{2a78} | |
| Swift | \u{2A78} | |
| PHP | \u{2A78} | |
| URL encoded | %E2%A9%B8 | |
| UTF-8 bytes | E2 A9 B8 | |
| UTF-16 bytes | 2A78 | |
| Base64 | 4qm4 | |
| Decimal | 10872 | |
| HTML entity | ⩸ | |
| LaTeX | \equivDD | |
| 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.
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 2A78 then press Alt+X |
|---|---|
| macOS | Press Ctrl+Cmd+Space, then search for “equivalent with four dots above” |
| Linux | Press Ctrl+Shift+U, type 2a78, 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 ⩸ equivalent with four dots above symbol?
- On Windows, type 2A78 and press Alt+X. On Linux press Ctrl+Shift+U then 2a78. On any system the quickest route is the copy button on this page.
- What is the code for ⩸?
- Equivalent With Four Dots Above is U+2A78, written in HTML as ⩸ and in LaTeX as \equivDD. In UTF-8 it takes 3 bytes. The table above lists every escape format.
- What kind of character is ⩸?
- Equivalent With Four Dots Above 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.