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Mathematical Left Double Angle Bracket HTML entity ⟪
⟪ is the HTML entity for Mathematical Left Double Angle Bracket ⟪ (U+27EA). Copy ⟪, ⟪ and the CSS, JavaScript, Python and URL escapes.
- Entity
⟪- Code point
- U+27EA
- Unicode name
- MATHEMATICAL LEFT DOUBLE ANGLE BRACKET
- Block
- Miscellaneous Mathematical Symbols-A
- Category
- Open punctuation (Ps)
- Since
- Unicode 3.2
- Defined in
- HTML5
Codes to copy
| HTML named | ⟪Works in HTML; in XML only & < > " ' are predefined. | |
|---|---|---|
| HTML decimal | ⟪Works in HTML and XML. | |
| HTML hex | ⟪Works in HTML and XML. | |
| CSS | content: "\27EA";In a stylesheet, for ::before and ::after. | |
| JavaScript | "\u27EA"Also valid in JSON. | |
| Python | "\u27ea"Python 3 string literal. | |
| Python by name | "\N{MATHEMATICAL LEFT DOUBLE ANGLE BRACKET}"Readable alternative using the Unicode name. | |
| URL | %E2%9F%AAPercent-encoded UTF-8 bytes, for a path or query value. | |
| UTF-8 bytes | E2 9F AA3 bytes. | |
| UTF-16 | 27EA1 code unit, which is what JavaScript length counts. |
When to use it
⟪ writes U+27EA (Mathematical Left Double Angle Bracket), an opening bracket from the Unicode Miscellaneous Mathematical Symbols-A block, encoded since Unicode 3.2. For more than a symbol or two, MathML, supported in all major browsers since 2023, gives proper maths spacing and layout.
The name comes from the HTML5 list (much of it shared with MathML), so it works in every current browser but not in XML or XHTML served as XML, where the numeric reference is the safe choice.
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All maths operators · Every HTML entity · Encode or decode text
Source: the WHATWG HTML Standard list of named character references and the Unicode Character Database (Unicode 18.0).