Mathematical Left Double Angle Bracket ⟪
Usage snapshot:
- Used in content written with the Common script; suitable for UI labels and body text.
- Appears in the Unicode block Miscellaneous Mathematical Symbols-A.
History & usage: MATHEMATICAL LEFT DOUBLE ANGLE BRACKET depicts the official name of this code point. In naming, a BRACKET token signals a structural delimiter used to group or compare mathematical expressions. In general terms, functional tokens indicate how a symbol organizes meaning: a mark or bracket acts as a boundary, while letters signal content that can form algebraic or logical units. The descriptor hints at a left-facing, double-angled form that can frame items in formulas.
2–3 practical usage contexts emerge from its information: scholars reference it in printed grammars and scholarly editions to show how angled brackets were used to enclose terms or sequences; archival transcriptions of mathematical texts note its role in delimiting expressions; typographic revivals or specimen collections show how the symbol appears in typefaces used for equations. In classroom primers, it helps illustrate how delimiters function in formulas, and in quick UI tools for calculators or math editors, it supports clear grouping during operations or comparisons. Cross-platform rendering holds and accessibility can be improved by high-contrast outlines and text alternatives.
See our category page for related symbols.
Need styled alternatives? Try the Fancy Text tool.
Technical details
- Codepoint:
U+27EA - General Category:
Ps - Age:
3.2 - Bidi Class:
ON - Block:
Miscellaneous Mathematical Symbols-A - Script:
Common - UTF-8:
E2 9F AA - UTF-16:
27EA - UTF-32:
000027EA - HTML dec:
⟪ - HTML hex:
⟪ - JS escape:
\u27EA - Python \N{}:
\N{MATHEMATICAL LEFT DOUBLE ANGLE BRACKET} - Python \u:
\u27EA - Python \U:
\U000027EA - URL-encoded:
%E2%9F%AA - CSS escape:
\27EA
How to type / insert
Fast copy: click the Copy button near the top of this page.
By codepoint: in many editors and IDEs, you can insert via the Unicode code U+27EA or a built‑in character picker.
HTML: use the numeric entity ⟪ (hex) or ⟪ (decimal) when an HTML entity is needed.
Compatibility & troubleshooting
Font support: if the symbol does not render, the current font likely lacks this codepoint. Choose a font with broad Unicode coverage or allow a fallback font.
Web pages: ensure your CSS font stack includes a general fallback; avoid relying on images for common symbols to preserve accessibility and copyability.