U+27EA "⟪" Mathematical Left Double Angle Bracket Unicode Character
Unicode Version 17.0
⟪
U+27EA "⟪" Mathematical Left Double Angle Bracket is a typographic symbol used primarily in mathematical notation, where it often serves as a delimiter for intervals, sequences, or matrix entries, resembling a double version of the single left angle bracket. It is distinct from the similar-looking guillemet or quotation marks, belonging instead to the Mathematical Operators block to ensure unambiguous use in technical and scientific text. This character is typically paired with its right-facing counterpart U+27EB to enclose expressions or denote specific ordered relationships. Its inclusion in Unicode allows for precise representation in digital documents, programming, and typesetting systems that require standardized mathematical symbols.
General Properties
| Code Point | U+27EA |
| Version Added | 3.2 |
| Name | Mathematical Left Double Angle Bracket |
| Block | Miscellaneous Mathematical Symbols-A |
| General Category | Open Punctuation |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Other Neutral |
| Mirrored | Yes |
| Mirrored Character | "⟫" U+27EB Mathematical Right Double Angle Bracket |
| Bidirectional Paired Bracket Type | Open |
| Bidirectional Paired Bracket | "⟫" U+27EB Mathematical Right Double Angle Bracket |
Encodings
| HTML Decimal Encoding | ⟪ |
| HTML Hex Encoding | ⟪ |
| UTF-8 Encoding | 0xE2 0x9F 0xAA |
| UTF-16 Encoding | 0x27EA |
| UTF-32 Encoding | 0x000027EA |
| C/C++/Java Escape | \u27ea |