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Mathematical Left White Square Bracket HTML entity ⟦
⟦ is the HTML entity for Mathematical Left White Square Bracket ⟦ (U+27E6). Copy ⟦, ⟦ and the CSS, JavaScript, Python and URL escapes.
- Entity
⟦- Also written
⟦- Code point
- U+27E6
- Unicode name
- MATHEMATICAL LEFT WHITE SQUARE 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: "\27E6";In a stylesheet, for ::before and ::after. | |
| JavaScript | "\u27E6"Also valid in JSON. | |
| Python | "\u27e6"Python 3 string literal. | |
| Python by name | "\N{MATHEMATICAL LEFT WHITE SQUARE BRACKET}"Readable alternative using the Unicode name. | |
| URL | %E2%9F%A6Percent-encoded UTF-8 bytes, for a path or query value. | |
| UTF-8 bytes | E2 9F A63 bytes. | |
| UTF-16 | 27E61 code unit, which is what JavaScript length counts. |
When to use it
⟦ writes U+27E6 (Mathematical Left White Square 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.
More maths operators
⟨Mathematical Left Angle Bracket⟈Reverse Solidus Preceding Subset⟩Mathematical Right Angle Bracket♯Music Sharp Sign⟪Mathematical Left Double Angle Bracket◼Black Medium Square⟫Mathematical Right Double Angle Bracket◻White Medium Square
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).