U+29DF · Math symbol
LaTeX
\dualmap
Double-Ended Multimap Symbol ⧟
⧟ is double-ended multimap, U+29DF — \dualmap in LaTeX. It was added in Unicode 3.2, and Unicode files it under Math symbol.
Codes & technical data
| Unicode | U+29DF | |
|---|---|---|
| HTML hex | ⧟ | |
| HTML decimal | ⧟ | |
| CSS | \29DF | |
| JavaScript | \u{29DF} | |
| Python | \U000029DF | |
| Java / C# | \u29DF | |
| Rust | \u{29df} | |
| Swift | \u{29DF} | |
| PHP | \u{29DF} | |
| URL encoded | %E2%A7%9F | |
| UTF-8 bytes | E2 A7 9F | |
| UTF-16 bytes | 29DF | |
| Base64 | 4qef | |
| Decimal | 10719 | |
| LaTeX | \dualmap | |
| 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.
Unicode cross-references
The standard points readers of ⧟ at these characters — usually because they look alike, or because one is the correct choice where the other is often used by mistake.
Nearby in Miscellaneous Mathematical Symbols-B
Brackets, fences and operators for advanced notation — the ceiling and floor variants, angle brackets and the many circled and squared operators.
All 128 characters in Miscellaneous Mathematical Symbols-B →
How to type ⧟
| Windows | Type 29DF then press Alt+X |
|---|---|
| macOS | Press Ctrl+Cmd+Space, then search for “double-ended multimap” |
| Linux | Press Ctrl+Shift+U, type 29df, 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 ⧟ double-ended multimap symbol?
- On Windows, type 29DF and press Alt+X. On Linux press Ctrl+Shift+U then 29df. On any system the quickest route is the copy button on this page.
- What is the code for ⧟?
- Double-Ended Multimap is U+29DF and in LaTeX as \dualmap. In UTF-8 it takes 3 bytes. The table above lists every escape format.
- What kind of character is ⧟?
- Double-Ended Multimap is filed under Math symbol in the Miscellaneous Mathematical Symbols-B 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.